31310222132 has 24 divisors (see below), whose sum is σ = 65916258240. Its totient is φ = 12712420800.

The previous prime is 31310222093. The next prime is 31310222149. The reversal of 31310222132 is 23122201313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29426369 + ... + 29427432.

It is an arithmetic number, because the mean of its divisors is an integer number (2746510760).

Almost surely, 2^31310222132 is an apocalyptic number.

It is an amenable number.

31310222132 is an abundant number, since it is smaller than the sum of its proper divisors (34606036108).

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

31310222132 is a wasteful number, since it uses less digits than its factorization.

31310222132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58853831 (or 58853829 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31310222132 its reverse (23122201313), we get a palindrome (54432423445).

The spelling of 31310222132 in words is "thirty-one billion, three hundred ten million, two hundred twenty-two thousand, one hundred thirty-two".