323131113021 has 64 divisors (see below), whose sum is σ = 482661679104. Its totient is φ = 191574028800.

The previous prime is 323131113013. The next prime is 323131113037. The reversal of 323131113021 is 120311131323.

It is a happy number.

It is not a de Polignac number, because 323131113021 - 2³ = 323131113013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323131113421) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 5581801 + ... + 5639393.

It is an arithmetic number, because the mean of its divisors is an integer number (7541588736).

Almost surely, 2^323131113021 is an apocalyptic number.

323131113021 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

323131113021 is a deficient number, since it is larger than the sum of its proper divisors (159530566083).

323131113021 is a wasteful number, since it uses less digits than its factorization.

323131113021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57754.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 323131113021 its reverse (120311131323), we get a palindrome (443442244344).

The spelling of 323131113021 in words is "three hundred twenty-three billion, one hundred thirty-one million, one hundred thirteen thousand, twenty-one".