31022012204 has 24 divisors (see below), whose sum is σ = 55656088656. Its totient is φ = 15120864000.

The previous prime is 31022012191. The next prime is 31022012207. The reversal of 31022012204 is 40221022013.

It is not an unprimeable number, because it can be changed into a prime (31022012207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138464 + ... + 284984.

It is an arithmetic number, because the mean of its divisors is an integer number (2319003694).

Almost surely, 2^31022012204 is an apocalyptic number.

It is an amenable number.

31022012204 is a deficient number, since it is larger than the sum of its proper divisors (24634076452).

31022012204 is a wasteful number, since it uses less digits than its factorization.

31022012204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147857 (or 147855 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 31022012204 its reverse (40221022013), we get a palindrome (71243034217).

The spelling of 31022012204 in words is "thirty-one billion, twenty-two million, twelve thousand, two hundred four".