311031301312 has 28 divisors (see below), whose sum is σ = 627320824096. Its totient is φ = 152966211840.

The previous prime is 311031301297. The next prime is 311031301363. The reversal of 311031301312 is 213103130113.

It is a super-2 number, since 2×311031301312² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 311031301312.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39831048 + ... + 39838855.

Almost surely, 2^311031301312 is an apocalyptic number.

311031301312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

311031301312 is an abundant number, since it is smaller than the sum of its proper divisors (316289522784).

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

311031301312 is an equidigital number, since it uses as much as digits as its factorization.

311031301312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79669976 (or 79669966 counting only the distinct ones).

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

Adding to 311031301312 its reverse (213103130113), we get a palindrome (524134431425).

The spelling of 311031301312 in words is "three hundred eleven billion, thirty-one million, three hundred one thousand, three hundred twelve".