31329797024 has 24 divisors (see below), whose sum is σ = 64362301920. Its totient is φ = 14983815616.

The previous prime is 31329796937. The next prime is 31329797039. The reversal of 31329797024 is 42079792313.

It is a self number, because there is not a number n which added to its sum of digits gives 31329797024.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21283094 + ... + 21284565.

It is an arithmetic number, because the mean of its divisors is an integer number (2681762580).

Almost surely, 2^31329797024 is an apocalyptic number.

It is an amenable number.

31329797024 is an abundant number, since it is smaller than the sum of its proper divisors (33032504896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31329797024 is a wasteful number, since it uses less digits than its factorization.

31329797024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42567692 (or 42567684 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 47.

The spelling of 31329797024 in words is "thirty-one billion, three hundred twenty-nine million, seven hundred ninety-seven thousand, twenty-four".