323121200232020 has 36 divisors (see below), whose sum is σ = 716147568729684. Its totient is φ = 122445928506240.

The previous prime is 323121200232007. The next prime is 323121200232091. The reversal of 323121200232020 is 20232002121323.

It can be written as a sum of positive squares in 2 ways, for example, as 36891580936336 + 286229619295684 = 6073844^2 + 16918322^2 .

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 22376807201 + ... + 22376821640.

It is an arithmetic number, because the mean of its divisors is an integer number (19892988020269).

Almost surely, 2^{323121200232020} is an apocalyptic number.

It is an amenable number.

323121200232020 is an abundant number, since it is smaller than the sum of its proper divisors (393026368497664).

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

323121200232020 is a wasteful number, since it uses less digits than its factorization.

323121200232020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44753628888 (or 44753628867 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 323121200232020 its reverse (20232002121323), we get a palindrome (343353202353343).

The spelling of 323121200232020 in words is "three hundred twenty-three trillion, one hundred twenty-one billion, two hundred million, two hundred thirty-two thousand, twenty".