31312312130 has 64 divisors (see below), whose sum is σ = 63039876480. Its totient is φ = 11099020800.

The previous prime is 31312312093. The next prime is 31312312139. The reversal of 31312312130 is 3121321313.

It is not an unprimeable number, because it can be changed into a prime (31312312139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7119092 + ... + 7123488.

It is an arithmetic number, because the mean of its divisors is an integer number (984998070).

Almost surely, 2^31312312130 is an apocalyptic number.

31312312130 is an abundant number, since it is smaller than the sum of its proper divisors (31727564350).

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

31312312130 is a wasteful number, since it uses less digits than its factorization.

31312312130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6035.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31312312130 its reverse (3121321313), we get a palindrome (34433633443).

The spelling of 31312312130 in words is "thirty-one billion, three hundred twelve million, three hundred twelve thousand, one hundred thirty".