320439934023 has 16 divisors (see below), whose sum is σ = 474888686976. Its totient is φ = 190541755040.

The previous prime is 320439934019. The next prime is 320439934093.

320439934023 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 320439934023 - 2² = 320439934019 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320439934093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91604865 + ... + 91608362.

It is an arithmetic number, because the mean of its divisors is an integer number (29680542936).

Almost surely, 2^320439934023 is an apocalyptic number.

320439934023 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

320439934023 is a deficient number, since it is larger than the sum of its proper divisors (154448752953).

320439934023 is a wasteful number, since it uses less digits than its factorization.

320439934023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183213294.

The product of its (nonzero) digits is 419904, while the sum is 42.

The spelling of 320439934023 in words is "three hundred twenty billion, four hundred thirty-nine million, nine hundred thirty-four thousand, twenty-three".