11431912 has 16 divisors (see below), whose sum is σ = 21530340. Its totient is φ = 5690496.

The previous prime is 11431883. The next prime is 11431913. The reversal of 11431912 is 21913411.

It can be written as a sum of positive squares in 2 ways, for example, as 11195716 + 236196 = 3346^2 + 486^2 .

It is a super-2 number, since 2×11431912² = 261377223951488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11431913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1203 + ... + 4930.

Almost surely, 2^11431912 is an apocalyptic number.

It is an amenable number.

11431912 is a deficient number, since it is larger than the sum of its proper divisors (10098428).

11431912 is a wasteful number, since it uses less digits than its factorization.

11431912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6372 (or 6368 counting only the distinct ones).

The product of its digits is 216, while the sum is 22.

The square root of 11431912 is about 3381.1110599920. Note that the first 3 decimals coincide. The cubic root of 11431912 is about 225.2715207677.

The spelling of 11431912 in words is "eleven million, four hundred thirty-one thousand, nine hundred twelve".