31022143204 has 48 divisors (see below), whose sum is σ = 61046395200. Its totient is φ = 13694921856.

The previous prime is 31022143193. The next prime is 31022143219. The reversal of 31022143204 is 40234122013.

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, 65227 + ... + 257485.

It is an arithmetic number, because the mean of its divisors is an integer number (1271799900).

Almost surely, 2^31022143204 is an apocalyptic number.

It is an amenable number.

31022143204 is a deficient number, since it is larger than the sum of its proper divisors (30024251996).

31022143204 is a wasteful number, since it uses less digits than its factorization.

31022143204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192412 (or 192410 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 31022143204 its reverse (40234122013), we get a palindrome (71256265217).

The spelling of 31022143204 in words is "thirty-one billion, twenty-two million, one hundred forty-three thousand, two hundred four".