11111304 has 32 divisors (see below), whose sum is σ = 27911520. Its totient is φ = 3686016.

The previous prime is 11111273. The next prime is 11111311. The reversal of 11111304 is 40311111.

It is a super-2 number, since 2×11111304² = 246922153160832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 11111304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4599 + ... + 6585.

It is an arithmetic number, because the mean of its divisors is an integer number (872235).

Almost surely, 2^11111304 is an apocalyptic number.

It is an amenable number.

11111304 is an abundant number, since it is smaller than the sum of its proper divisors (16800216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11111304 is a wasteful number, since it uses less digits than its factorization.

11111304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2229 (or 2225 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 11111304 is about 3333.3622665411. The cubic root of 11111304 is about 223.1456079484.

Adding to 11111304 its reverse (40311111), we get a palindrome (51422415).

It can be divided in two parts, 1111 and 1304, that added together give a triangular number (2415 = T₆₉).

The spelling of 11111304 in words is "eleven million, one hundred eleven thousand, three hundred four".