321130835972389 has 4 divisors (see below), whose sum is σ = 321181914527424. Its totient is φ = 321079757417356.

The previous prime is 321130835972363. The next prime is 321130835972411. The reversal of 321130835972389 is 983279538031123.

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 321130835972389 - 2⁹ = 321130835971877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 321130835972389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321130835970389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25539268087 + ... + 25539280660.

It is an arithmetic number, because the mean of its divisors is an integer number (80295478631856).

Almost surely, 2^{321130835972389} is an apocalyptic number.

It is an amenable number.

321130835972389 is a deficient number, since it is larger than the sum of its proper divisors (51078555035).

321130835972389 is an equidigital number, since it uses as much as digits as its factorization.

321130835972389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51078555034.

The product of its (nonzero) digits is 58786560, while the sum is 64.

The spelling of 321130835972389 in words is "three hundred twenty-one trillion, one hundred thirty billion, eight hundred thirty-five million, nine hundred seventy-two thousand, three hundred eighty-nine".