It is a happy number.
11104 is nontrivially palindromic in base 3.
11104 is an esthetic number in base 15, because in such base its adjacent digits differ by 1.
It is a congruent number.
It is an unprimeable number.
211104 is an apocalyptic number.
It is an amenable number.
11104 is an equidigital number, since it uses as much as digits as its factorization.
11104 is an evil number, because the sum of its binary digits is even.
The square root of 11104 is about 105.3755189786. The cubic root of 11104 is about 22.3096702414.
Adding to 11104 its reverse (40111), we get a palindrome (51215).
The spelling of 11104 in words is "eleven thousand, one hundred four", and thus it is an iban number.