311012311320 has 48 divisors (see below), whose sum is σ = 1010790012960. Its totient is φ = 82936616256.

The previous prime is 311012311283. The next prime is 311012311339. The reversal of 311012311320 is 23113210113.

311012311320 is a `hidden beast` number, since 3 + 110 + 1 + 231 + 1 + 320 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 311012311293 and 311012311302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 431961184 + ... + 431961903.

It is an arithmetic number, because the mean of its divisors is an integer number (21058125270).

Almost surely, 2^311012311320 is an apocalyptic number.

311012311320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

311012311320 is an abundant number, since it is smaller than the sum of its proper divisors (699777701640).

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

311012311320 is a wasteful number, since it uses less digits than its factorization.

311012311320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863923104 (or 863923097 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 311012311320 its reverse (23113210113), we get a palindrome (334125521433).

The spelling of 311012311320 in words is "three hundred eleven billion, twelve million, three hundred eleven thousand, three hundred twenty".