31220668804 has 12 divisors (see below), whose sum is σ = 58838952844. Its totient is φ = 14409539424.

The previous prime is 31220668769. The next prime is 31220668837. The reversal of 31220668804 is 40886602213.

It can be written as a sum of positive squares in 2 ways, for example, as 19653236100 + 11567432704 = 140190^2 + 107552^2 .

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, 300198687 + ... + 300198790.

Almost surely, 2^31220668804 is an apocalyptic number.

It is an amenable number.

31220668804 is a deficient number, since it is larger than the sum of its proper divisors (27618284040).

31220668804 is a wasteful number, since it uses less digits than its factorization.

31220668804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600397494 (or 600397492 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 31220668804 in words is "thirty-one billion, two hundred twenty million, six hundred sixty-eight thousand, eight hundred four".