312403034310020 has 48 divisors (see below), whose sum is σ = 696335715215280. Its totient is φ = 117322997673984.

The previous prime is 312403034309999. The next prime is 312403034310097. The reversal of 312403034310020 is 20013430304213.

It can be written as a sum of positive squares in 8 ways, for example, as 61332924793156 + 251070109516864 = 7831534^2 + 15845192^2 .

It is a super-2 number, since 2×312403034310020² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1123127999 + ... + 1123406118.

It is an arithmetic number, because the mean of its divisors is an integer number (14506994066985).

Almost surely, 2^{312403034310020} is an apocalyptic number.

It is an amenable number.

312403034310020 is an abundant number, since it is smaller than the sum of its proper divisors (383932680905260).

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

312403034310020 is a wasteful number, since it uses less digits than its factorization.

312403034310020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2246534552 (or 2246534550 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 312403034310020 its reverse (20013430304213), we get a palindrome (332416464614233).

The spelling of 312403034310020 in words is "three hundred twelve trillion, four hundred three billion, thirty-four million, three hundred ten thousand, twenty".