311442373000 has 64 divisors (see below), whose sum is σ = 795027467520. Its totient is φ = 113251768000.

The previous prime is 311442372919. The next prime is 311442373019. The reversal of 311442373000 is 373244113.

It is a super-2 number, since 2×311442373000² (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 311442373000.

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, 14145472 + ... + 14167471.

It is an arithmetic number, because the mean of its divisors is an integer number (12422304180).

Almost surely, 2^311442373000 is an apocalyptic number.

It is an amenable number.

311442373000 is an abundant number, since it is smaller than the sum of its proper divisors (483585094520).

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

311442373000 is a wasteful number, since it uses less digits than its factorization.

311442373000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28312975 (or 28312961 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The spelling of 311442373000 in words is "three hundred eleven billion, four hundred forty-two million, three hundred seventy-three thousand".