312031101020 has 24 divisors (see below), whose sum is σ = 655604733168. Its totient is φ = 124747788800.

The previous prime is 312031100977. The next prime is 312031101061. The reversal of 312031101020 is 20101130213.

It is a junction number, because it is equal to n+sod(n) for n = 312031100986 and 312031101004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4001141 + ... + 4078380.

It is an arithmetic number, because the mean of its divisors is an integer number (27316863882).

Almost surely, 2^312031101020 is an apocalyptic number.

It is an amenable number.

312031101020 is an abundant number, since it is smaller than the sum of its proper divisors (343573632148).

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

312031101020 is a wasteful number, since it uses less digits than its factorization.

312031101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8081461 (or 8081459 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 312031101020 its reverse (20101130213), we get a palindrome (332132231233).

The spelling of 312031101020 in words is "three hundred twelve billion, thirty-one million, one hundred one thousand, twenty".