312021320230020 has 48 divisors (see below), whose sum is σ = 873660474848448. Its totient is φ = 83205611280000.

The previous prime is 312021320230001. The next prime is 312021320230049. The reversal of 312021320230020 is 20032023120213.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113314602 + ... + 116035518.

It is an arithmetic number, because the mean of its divisors is an integer number (18201259892676).

Almost surely, 2^{312021320230020} is an apocalyptic number.

312021320230020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312021320230020 is an abundant number, since it is smaller than the sum of its proper divisors (561639154618428).

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

312021320230020 is a wasteful number, since it uses less digits than its factorization.

312021320230020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4632180 (or 4632178 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 312021320230020 its reverse (20032023120213), we get a palindrome (332053343350233).

The spelling of 312021320230020 in words is "three hundred twelve trillion, twenty-one billion, three hundred twenty million, two hundred thirty thousand, twenty".