31323918874 has 16 divisors (see below), whose sum is σ = 48261057768. Its totient is φ = 15236992512.

The previous prime is 31323918853. The next prime is 31323918931. The reversal of 31323918874 is 47881932313.

It can be written as a sum of positive squares in 4 ways, for example, as 28918703025 + 2405215849 = 170055^2 + 49043^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 906034 + ... + 939970.

Almost surely, 2^31323918874 is an apocalyptic number.

31323918874 is a deficient number, since it is larger than the sum of its proper divisors (16937138894).

31323918874 is a wasteful number, since it uses less digits than its factorization.

31323918874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46449.

The product of its digits is 870912, while the sum is 49.

The spelling of 31323918874 in words is "thirty-one billion, three hundred twenty-three million, nine hundred eighteen thousand, eight hundred seventy-four".