312311020312 has 128 divisors (see below), whose sum is σ = 633559449600. Its totient is φ = 144038361600.

The previous prime is 312311020213. The next prime is 312311020339. The reversal of 312311020312 is 213020113213.

It is a self number, because there is not a number n which added to its sum of digits gives 312311020312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116229033 + ... + 116231719.

It is an arithmetic number, because the mean of its divisors is an integer number (4949683200).

Almost surely, 2^312311020312 is an apocalyptic number.

It is an amenable number.

312311020312 is an abundant number, since it is smaller than the sum of its proper divisors (321248429288).

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

312311020312 is a wasteful number, since it uses less digits than its factorization.

312311020312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3017 (or 3013 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 312311020312 its reverse (213020113213), we get a palindrome (525331133525).

The spelling of 312311020312 in words is "three hundred twelve billion, three hundred eleven million, twenty thousand, three hundred twelve".