321131013323321 has 4 divisors (see below), whose sum is σ = 321132945883392. Its totient is φ = 321129080763252.

The previous prime is 321131013323291. The next prime is 321131013323353. The reversal of 321131013323321 is 123323310131123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 321131013323321 - 2²² = 321131009129017 is a prime.

It is a super-2 number, since 2×321131013323321² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321131013383321) 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 3 ways as a sum of consecutive naturals, for example, 966030761 + ... + 966363126.

It is an arithmetic number, because the mean of its divisors is an integer number (80283236470848).

Almost surely, 2^{321131013323321} is an apocalyptic number.

It is an amenable number.

321131013323321 is a deficient number, since it is larger than the sum of its proper divisors (1932560071).

321131013323321 is a wasteful number, since it uses less digits than its factorization.

321131013323321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932560070.

The product of its (nonzero) digits is 5832, while the sum is 29.

Adding to 321131013323321 its reverse (123323310131123), we get a palindrome (444454323454444).

The spelling of 321131013323321 in words is "three hundred twenty-one trillion, one hundred thirty-one billion, thirteen million, three hundred twenty-three thousand, three hundred twenty-one".