311020001028 has 72 divisors (see below), whose sum is σ = 862105267296. Its totient is φ = 93760128000.

The previous prime is 311020001021. The next prime is 311020001053. The reversal of 311020001028 is 820100020113.

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

It is a self number, because there is not a number n which added to its sum of digits gives 311020001028.

It is not an unprimeable number, because it can be changed into a prime (311020001021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1958298 + ... + 2111153.

It is an arithmetic number, because the mean of its divisors is an integer number (11973684268).

Almost surely, 2^311020001028 is an apocalyptic number.

It is an amenable number.

311020001028 is an abundant number, since it is smaller than the sum of its proper divisors (551085266268).

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

311020001028 is a wasteful number, since it uses less digits than its factorization.

311020001028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4069665 (or 4069660 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The spelling of 311020001028 in words is "three hundred eleven billion, twenty million, one thousand, twenty-eight".