320336131623 has 4 divisors (see below), whose sum is σ = 427114842168. Its totient is φ = 213557421080.

The previous prime is 320336131613. The next prime is 320336131667. The reversal of 320336131623 is 326131633023.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 320336131623 - 2²⁵ = 320302577191 is a prime.

It is a super-2 number, since 2×320336131623² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320336131613) 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, 53389355268 + ... + 53389355273.

It is an arithmetic number, because the mean of its divisors is an integer number (106778710542).

Almost surely, 2^320336131623 is an apocalyptic number.

320336131623 is a deficient number, since it is larger than the sum of its proper divisors (106778710545).

320336131623 is a wasteful number, since it uses less digits than its factorization.

320336131623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106778710544.

The product of its (nonzero) digits is 34992, while the sum is 33.

Adding to 320336131623 its reverse (326131633023), we get a palindrome (646467764646).

The spelling of 320336131623 in words is "three hundred twenty billion, three hundred thirty-six million, one hundred thirty-one thousand, six hundred twenty-three".