311306946420 has 48 divisors (see below), whose sum is σ = 875465861760. Its totient is φ = 82652670336.

The previous prime is 311306946367. The next prime is 311306946449. The reversal of 311306946420 is 24649603113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11314752 + ... + 11342231.

It is an arithmetic number, because the mean of its divisors is an integer number (18238872120).

Almost surely, 2^311306946420 is an apocalyptic number.

311306946420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

311306946420 is an abundant number, since it is smaller than the sum of its proper divisors (564158915340).

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

311306946420 is a wasteful number, since it uses less digits than its factorization.

311306946420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22657224 (or 22657222 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 39.

The spelling of 311306946420 in words is "three hundred eleven billion, three hundred six million, nine hundred forty-six thousand, four hundred twenty".