31631112712 has 16 divisors (see below), whose sum is σ = 59354726400. Its totient is φ = 15803185680.

The previous prime is 31631112701. The next prime is 31631112727. The reversal of 31631112712 is 21721113613.

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, 1535464 + ... + 1555927.

It is an arithmetic number, because the mean of its divisors is an integer number (3709670400).

Almost surely, 2^31631112712 is an apocalyptic number.

It is an amenable number.

31631112712 is a deficient number, since it is larger than the sum of its proper divisors (27723613688).

31631112712 is a wasteful number, since it uses less digits than its factorization.

31631112712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3092676 (or 3092672 counting only the distinct ones).

The product of its digits is 1512, while the sum is 28.

Subtracting from 31631112712 its reverse (21721113613), we obtain a palindrome (9909999099).

The spelling of 31631112712 in words is "thirty-one billion, six hundred thirty-one million, one hundred twelve thousand, seven hundred twelve".