311002230001020 has 96 divisors (see below), whose sum is σ = 875377712149248. Its totient is φ = 82498608525312.

The previous prime is 311002230000983. The next prime is 311002230001031. The reversal of 311002230001020 is 20100032200113.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170790987 + ... + 172602333.

It is an arithmetic number, because the mean of its divisors is an integer number (9118517834888).

Almost surely, 2^{311002230001020} is an apocalyptic number.

311002230001020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

311002230001020 is an abundant number, since it is smaller than the sum of its proper divisors (564375482148228).

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

311002230001020 is a wasteful number, since it uses less digits than its factorization.

311002230001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826379 (or 1826377 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 311002230001020 its reverse (20100032200113), we get a palindrome (331102262201133).

The spelling of 311002230001020 in words is "three hundred eleven trillion, two billion, two hundred thirty million, one thousand, twenty".