320311320231 has 96 divisors (see below), whose sum is σ = 527150592000. Its totient is φ = 172213966848.

The previous prime is 320311320169. The next prime is 320311320269. The reversal of 320311320231 is 132023113023.

It is not a de Polignac number, because 320311320231 - 2⁹ = 320311319719 is a prime.

It is a super-2 number, since 2×320311320231² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 320311320198 and 320311320207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320311320271) 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 95 ways as a sum of consecutive naturals, for example, 47882935 + ... + 47889623.

It is an arithmetic number, because the mean of its divisors is an integer number (5491152000).

Almost surely, 2^320311320231 is an apocalyptic number.

320311320231 is a deficient number, since it is larger than the sum of its proper divisors (206839271769).

320311320231 is a wasteful number, since it uses less digits than its factorization.

320311320231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7021 (or 7014 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 320311320231 its reverse (132023113023), we get a palindrome (452334433254).

The spelling of 320311320231 in words is "three hundred twenty billion, three hundred eleven million, three hundred twenty thousand, two hundred thirty-one".