312310310020 has 12 divisors (see below), whose sum is σ = 655851651084. Its totient is φ = 124924124000.

The previous prime is 312310309991. The next prime is 312310310021. The reversal of 312310310020 is 20013013213.

It can be written as a sum of positive squares in 2 ways, for example, as 225837850176 + 86472459844 = 475224^2 + 294062^2 .

It is a junction number, because it is equal to n+sod(n) for n = 312310309976 and 312310310003.

It is not an unprimeable number, because it can be changed into a prime (312310310021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7807757731 + ... + 7807757770.

It is an arithmetic number, because the mean of its divisors is an integer number (54654304257).

Almost surely, 2^312310310020 is an apocalyptic number.

It is an amenable number.

312310310020 is an abundant number, since it is smaller than the sum of its proper divisors (343541341064).

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

312310310020 is a wasteful number, since it uses less digits than its factorization.

312310310020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15615515510 (or 15615515508 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 312310310020 its reverse (20013013213), we get a palindrome (332323323233).

The spelling of 312310310020 in words is "three hundred twelve billion, three hundred ten million, three hundred ten thousand, twenty".