31324912 has 20 divisors (see below), whose sum is σ = 61599976. Its totient is φ = 15428160.

The previous prime is 31324883. The next prime is 31324933. The reversal of 31324912 is 21942313.

It is a super-2 number, since 2×31324912² = 1962500223615488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13539 + ... + 15682.

Almost surely, 2^31324912 is an apocalyptic number.

It is an amenable number.

31324912 is a deficient number, since it is larger than the sum of its proper divisors (30275064).

31324912 is a wasteful number, since it uses less digits than its factorization.

31324912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29296 (or 29290 counting only the distinct ones).

The product of its digits is 1296, while the sum is 25.

The square root of 31324912 is about 5596.8662660457. The cubic root of 31324912 is about 315.2317501750.

The spelling of 31324912 in words is "thirty-one million, three hundred twenty-four thousand, nine hundred twelve".