31223366956 has 12 divisors (see below), whose sum is σ = 55039731768. Its totient is φ = 15497729312.

The previous prime is 31223366929. The next prime is 31223366969. The reversal of 31223366956 is 65966332213.

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, 28487926 + ... + 28489021.

It is an arithmetic number, because the mean of its divisors is an integer number (4586644314).

Almost surely, 2^31223366956 is an apocalyptic number.

It is an amenable number.

31223366956 is a deficient number, since it is larger than the sum of its proper divisors (23816364812).

31223366956 is a wasteful number, since it uses less digits than its factorization.

31223366956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56977088 (or 56977086 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 46.

The spelling of 31223366956 in words is "thirty-one billion, two hundred twenty-three million, three hundred sixty-six thousand, nine hundred fifty-six".