312133032020 has 24 divisors (see below), whose sum is σ = 663376712544. Its totient is φ = 123348956576.

The previous prime is 312133032019. The next prime is 312133032059. The reversal of 312133032020 is 20230331213.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 312133031983 and 312133032001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94014314 + ... + 94017633.

It is an arithmetic number, because the mean of its divisors is an integer number (27640696356).

Almost surely, 2^312133032020 is an apocalyptic number.

It is an amenable number.

312133032020 is an abundant number, since it is smaller than the sum of its proper divisors (351243680524).

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

312133032020 is a wasteful number, since it uses less digits than its factorization.

312133032020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188032039 (or 188032037 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 312133032020 its reverse (20230331213), we get a palindrome (332363363233).

The spelling of 312133032020 in words is "three hundred twelve billion, one hundred thirty-three million, thirty-two thousand, twenty".