320031131023 has 16 divisors (see below), whose sum is σ = 336610593792. Its totient is φ = 303675372000.

The previous prime is 320031130919. The next prime is 320031131051. The reversal of 320031131023 is 320131130023.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320031131023 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 (320031131923) 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 15 ways as a sum of consecutive naturals, for example, 9567658 + ... + 9601048.

It is an arithmetic number, because the mean of its divisors is an integer number (21038162112).

Almost surely, 2^320031131023 is an apocalyptic number.

320031131023 is a deficient number, since it is larger than the sum of its proper divisors (16579462769).

320031131023 is a wasteful number, since it uses less digits than its factorization.

320031131023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36726.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 320031131023 its reverse (320131130023), we get a palindrome (640162261046).

The spelling of 320031131023 in words is "three hundred twenty billion, thirty-one million, one hundred thirty-one thousand, twenty-three".