320013534123757 has 4 divisors (see below), whose sum is σ = 323869118872320. Its totient is φ = 316157949375196.

The previous prime is 320013534123709. The next prime is 320013534123839. The reversal of 320013534123757 is 757321435310023.

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 320013534123757 - 2¹¹ = 320013534121709 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 (320013534126757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1927792374157 + ... + 1927792374322.

It is an arithmetic number, because the mean of its divisors is an integer number (80967279718080).

Almost surely, 2^{320013534123757} is an apocalyptic number.

It is an amenable number.

320013534123757 is a deficient number, since it is larger than the sum of its proper divisors (3855584748563).

320013534123757 is an equidigital number, since it uses as much as digits as its factorization.

320013534123757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3855584748562.

The product of its (nonzero) digits is 1587600, while the sum is 46.

The spelling of 320013534123757 in words is "three hundred twenty trillion, thirteen billion, five hundred thirty-four million, one hundred twenty-three thousand, seven hundred fifty-seven".