31432020008 has 16 divisors (see below), whose sum is σ = 58942819680. Its totient is φ = 15713934768.

The previous prime is 31432020007. The next prime is 31432020013. The reversal of 31432020008 is 80002023413.

It is not an unprimeable number, because it can be changed into a prime (31432020007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194066 + ... + 317057.

It is an arithmetic number, because the mean of its divisors is an integer number (3683926230).

Almost surely, 2^31432020008 is an apocalyptic number.

It is an amenable number.

31432020008 is a deficient number, since it is larger than the sum of its proper divisors (27510799672).

31432020008 is a wasteful number, since it uses less digits than its factorization.

31432020008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518816 (or 518812 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The spelling of 31432020008 in words is "thirty-one billion, four hundred thirty-two million, twenty thousand, eight".