13111804 has 6 divisors (see below), whose sum is σ = 22945664. Its totient is φ = 6555900.

The previous prime is 13111789. The next prime is 13111831. The reversal of 13111804 is 40811131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1638972 + ... + 1638979.

Almost surely, 2^13111804 is an apocalyptic number.

It is an amenable number.

13111804 is a deficient number, since it is larger than the sum of its proper divisors (9833860).

13111804 is a wasteful number, since it uses less digits than its factorization.

13111804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3277955 (or 3277953 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 13111804 is about 3621.0225075246. The cubic root of 13111804 is about 235.8056189330.

Adding to 13111804 its reverse (40811131), we get a palindrome (53922935).

It can be divided in two parts, 131 and 11804, that added together give a triangular number (11935 = T₁₅₄).

The spelling of 13111804 in words is "thirteen million, one hundred eleven thousand, eight hundred four".