diff --git a/django/contrib/contenttypes/models.py b/django/contrib/contenttypes/models.py
index 759a53ce67..0d98ed3a4d 100644
--- a/django/contrib/contenttypes/models.py
+++ b/django/contrib/contenttypes/models.py
@@ -162,7 +162,10 @@ class ContentType(models.Model):
         model = self.model_class()
         if not model:
             return self.model
-        return "%s | %s" % (model._meta.app_label, model._meta.verbose_name)
+        return "%s | %s" % (
+            model._meta.app_config.verbose_name,
+            model._meta.verbose_name,
+        )
 
     def model_class(self):
         """Return the model class for this type of content."""
diff --git a/tests/auth_tests/test_models.py b/tests/auth_tests/test_models.py
index fe1afcbdc3..41f822fdc7 100644
--- a/tests/auth_tests/test_models.py
+++ b/tests/auth_tests/test_models.py
@@ -587,5 +587,5 @@ class PermissionTests(TestCase):
     def test_str(self):
         p = Permission.objects.get(codename="view_customemailfield")
         self.assertEqual(
-            str(p), "auth_tests | custom email field | Can view custom email field"
+            str(p), "Auth_Tests | custom email field | Can view custom email field"
         )
diff --git a/tests/contenttypes_tests/test_models.py b/tests/contenttypes_tests/test_models.py
index 2b346b0e44..95518bb3df 100644
--- a/tests/contenttypes_tests/test_models.py
+++ b/tests/contenttypes_tests/test_models.py
@@ -280,7 +280,11 @@ class ContentTypesTests(TestCase):
 
     def test_str(self):
         ct = ContentType.objects.get(app_label="contenttypes_tests", model="site")
-        self.assertEqual(str(ct), "contenttypes_tests | site")
+        self.assertEqual(str(ct), "Contenttypes_Tests | site")
+
+    def test_str_auth(self):
+        ct = ContentType.objects.get(app_label="auth", model="group")
+        self.assertEqual(str(ct), "Authentication and Authorization | group")
 
     def test_name(self):
         ct = ContentType.objects.get(app_label="contenttypes_tests", model="site")
@@ -288,7 +292,7 @@ class ContentTypesTests(TestCase):
 
     def test_app_labeled_name(self):
         ct = ContentType.objects.get(app_label="contenttypes_tests", model="site")
-        self.assertEqual(ct.app_labeled_name, "contenttypes_tests | site")
+        self.assertEqual(ct.app_labeled_name, "Contenttypes_Tests | site")
 
     def test_name_unknown_model(self):
         ct = ContentType(app_label="contenttypes_tests", model="unknown")
diff --git a/tests/i18n/contenttypes/tests.py b/tests/i18n/contenttypes/tests.py
index 22bbb5d834..10e6c5ed69 100644
--- a/tests/i18n/contenttypes/tests.py
+++ b/tests/i18n/contenttypes/tests.py
@@ -20,6 +20,6 @@ class ContentTypeTests(TestCase):
     def test_verbose_name(self):
         company_type = ContentType.objects.get(app_label="i18n", model="company")
         with translation.override("en"):
-            self.assertEqual(str(company_type), "i18n | Company")
+            self.assertEqual(str(company_type), "I18N | Company")
         with translation.override("fr"):
-            self.assertEqual(str(company_type), "i18n | Société")
+            self.assertEqual(str(company_type), "I18N | Société")
diff --git a/tests/multiple_database/tests.py b/tests/multiple_database/tests.py
index bdbe641cdf..337ebae75e 100644
--- a/tests/multiple_database/tests.py
+++ b/tests/multiple_database/tests.py
@@ -1118,7 +1118,7 @@ class QueryTestCase(TestCase):
 
         # Set a foreign key with an object from a different database
         msg = (
-            'Cannot assign "<ContentType: multiple_database | book>": the '
+            'Cannot assign "<ContentType: Multiple_Database | book>": the '
             "current database router prevents this relation."
         )
         with self.assertRaisesMessage(ValueError, msg):