31032020004 has 48 divisors (see below), whose sum is σ = 73245043200. Its totient is φ = 10224700416.

The previous prime is 31032019943. The next prime is 31032020027. The reversal of 31032020004 is 40002023013.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 948877 + ... + 981035.

It is an arithmetic number, because the mean of its divisors is an integer number (1525938400).

Almost surely, 2^31032020004 is an apocalyptic number.

It is an amenable number.

31032020004 is an abundant number, since it is smaller than the sum of its proper divisors (42213023196).

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

31032020004 is a wasteful number, since it uses less digits than its factorization.

31032020004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33092 (or 33090 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 31032020004 its reverse (40002023013), we get a palindrome (71034043017).

The spelling of 31032020004 in words is "thirty-one billion, thirty-two million, twenty thousand, four".