31312300112 has 20 divisors (see below), whose sum is σ = 60921428160. Its totient is φ = 15590641248.

The previous prime is 31312300087. The next prime is 31312300139. The reversal of 31312300112 is 21100321313.

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, 4090358 + ... + 4098005.

It is an arithmetic number, because the mean of its divisors is an integer number (3046071408).

Almost surely, 2^31312300112 is an apocalyptic number.

It is an amenable number.

31312300112 is a deficient number, since it is larger than the sum of its proper divisors (29609128048).

31312300112 is a wasteful number, since it uses less digits than its factorization.

31312300112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8188610 (or 8188604 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31312300112 its reverse (21100321313), we get a palindrome (52412621425).

The spelling of 31312300112 in words is "thirty-one billion, three hundred twelve million, three hundred thousand, one hundred twelve".