321439934123 has 72 divisors (see below), whose sum is σ = 439921942272. Its totient is φ = 228119328000.

The previous prime is 321439934069. The next prime is 321439934129.

321439934123 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 321439934123 - 2¹⁰ = 321439933099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321439934129) 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 71 ways as a sum of consecutive naturals, for example, 21377618 + ... + 21392648.

It is an arithmetic number, because the mean of its divisors is an integer number (6110026976).

Almost surely, 2^321439934123 is an apocalyptic number.

321439934123 is a deficient number, since it is larger than the sum of its proper divisors (118482008149).

321439934123 is a wasteful number, since it uses less digits than its factorization.

321439934123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15145 (or 15097 counting only the distinct ones).

The product of its digits is 419904, while the sum is 44.

The spelling of 321439934123 in words is "three hundred twenty-one billion, four hundred thirty-nine million, nine hundred thirty-four thousand, one hundred twenty-three".