311202130112 has 56 divisors (see below), whose sum is σ = 635302845216. Its totient is φ = 151182839808.

The previous prime is 311202130093. The next prime is 311202130181. The reversal of 311202130112 is 211031202113.

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, 95993 + ... + 794744.

Almost surely, 2^311202130112 is an apocalyptic number.

311202130112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

311202130112 is an abundant number, since it is smaller than the sum of its proper divisors (324100715104).

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

311202130112 is a wasteful number, since it uses less digits than its factorization.

311202130112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890905 (or 890895 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 311202130112 its reverse (211031202113), we get a palindrome (522233332225).

The spelling of 311202130112 in words is "three hundred eleven billion, two hundred two million, one hundred thirty thousand, one hundred twelve".