31214012 has 12 divisors (see below), whose sum is σ = 54685176. Its totient is φ = 15589680.

The previous prime is 31213999. The next prime is 31214021. The reversal of 31214012 is 21041213.

It is a super-2 number, since 2×31214012² = 1948629090272288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263 + ... + 7905.

It is an arithmetic number, because the mean of its divisors is an integer number (4557098).

Almost surely, 2^31214012 is an apocalyptic number.

It is an amenable number.

31214012 is a deficient number, since it is larger than the sum of its proper divisors (23471164).

31214012 is a wasteful number, since it uses less digits than its factorization.

31214012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8668 (or 8666 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 31214012 is about 5586.9501519165. The cubic root of 31214012 is about 314.8593039259.

Adding to 31214012 its reverse (21041213), we get a palindrome (52255225).

The spelling of 31214012 in words is "thirty-one million, two hundred fourteen thousand, twelve".