311130310312 has 16 divisors (see below), whose sum is σ = 587284564500. Its totient is φ = 154521093120.

The previous prime is 311130310307. The next prime is 311130310319. The reversal of 311130310312 is 213013031113.

It can be written as a sum of positive squares in 2 ways, for example, as 219917854116 + 91212456196 = 468954^2 + 302014^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 311130310312.

It is not an unprimeable number, because it can be changed into a prime (311130310319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130506489 + ... + 130508872.

Almost surely, 2^311130310312 is an apocalyptic number.

It is an amenable number.

311130310312 is a deficient number, since it is larger than the sum of its proper divisors (276154254188).

311130310312 is a wasteful number, since it uses less digits than its factorization.

311130310312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261015516 (or 261015512 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 311130310312 its reverse (213013031113), we get a palindrome (524143341425).

The spelling of 311130310312 in words is "three hundred eleven billion, one hundred thirty million, three hundred ten thousand, three hundred twelve".