312321232031020 has 48 divisors (see below), whose sum is σ = 690616368136800. Its totient is φ = 118315240565760.

The previous prime is 312321232030987. The next prime is 312321232031059. The reversal of 312321232031020 is 20130232123213.

It is a super-3 number, since 3×312321232031020³ (a number of 44 digits) contains 333 as substring.

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, 130999021 + ... + 133361860.

It is an arithmetic number, because the mean of its divisors is an integer number (14387841002850).

Almost surely, 2^{312321232031020} is an apocalyptic number.

It is an amenable number.

312321232031020 is an abundant number, since it is smaller than the sum of its proper divisors (378295136105780).

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

312321232031020 is a wasteful number, since it uses less digits than its factorization.

312321232031020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264364018 (or 264364016 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 312321232031020 its reverse (20130232123213), we get a palindrome (332451464154233).

The spelling of 312321232031020 in words is "three hundred twelve trillion, three hundred twenty-one billion, two hundred thirty-two million, thirty-one thousand, twenty".