31022043212 has 12 divisors (see below), whose sum is σ = 56160595680. Its totient is φ = 14976158736.

The previous prime is 31022043193. The next prime is 31022043229. The reversal of 31022043212 is 21234022013.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133715588 + ... + 133715819.

It is an arithmetic number, because the mean of its divisors is an integer number (4680049640).

Almost surely, 2^31022043212 is an apocalyptic number.

It is an amenable number.

31022043212 is a deficient number, since it is larger than the sum of its proper divisors (25138552468).

31022043212 is a wasteful number, since it uses less digits than its factorization.

31022043212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267431440 (or 267431438 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 31022043212 its reverse (21234022013), we get a palindrome (52256065225).

The spelling of 31022043212 in words is "thirty-one billion, twenty-two million, forty-three thousand, two hundred twelve".