311031323130112 has 36 divisors (see below), whose sum is σ = 668605194019420. Its totient is φ = 143552918366208.

The previous prime is 311031323130109. The next prime is 311031323130133. The reversal of 311031323130112 is 211031323130113.

It can be written as a sum of positive squares in 2 ways, for example, as 174283932368896 + 136747390761216 = 13201664^2 + 11693904^2 .

It is a super-2 number, since 2×311031323130112² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46729462287 + ... + 46729468942.

Almost surely, 2^{311031323130112} is an apocalyptic number.

311031323130112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

311031323130112 is an abundant number, since it is smaller than the sum of its proper divisors (357573870889308).

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

311031323130112 is an equidigital number, since it uses as much as digits as its factorization.

311031323130112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93458931258 (or 93458931244 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 311031323130112 its reverse (211031323130113), we get a palindrome (522062646260225).

Subtracting from 311031323130112 its reverse (211031323130113), we obtain a palindrome (99999999999999).

The spelling of 311031323130112 in words is "three hundred eleven trillion, thirty-one billion, three hundred twenty-three million, one hundred thirty thousand, one hundred twelve".