13

Letters that make 13

1, 3 are letters that make '13'

are words within '13'

31 is an anagram of '13'

2 possible definitions for '13'

Under this definition, 13 is a noun and has the following properties:

thirteen, XIII, baker's dozen, long dozen have the same meaning as '13'

'13' can be a type of large integer.

Under this definition, 13 is an adjective and has the following properties:

thirteen, xiii have the same meaning as '13'

cardinal is similar to 13.