320131102222331 has 2 divisors, whose sum is σ = 320131102222332. Its totient is φ = 320131102222330.

The previous prime is 320131102222241. The next prime is 320131102222333. The reversal of 320131102222331 is 133222201131023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320131102222331 - 2²⁶ = 320131035113467 is a prime.

It is a super-2 number, since 2×320131102222331² (a number of 30 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 320131102222333, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320131102222331.

It is not a weakly prime, because it can be changed into another prime (320131102222333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160065551111165 + 160065551111166.

It is an arithmetic number, because the mean of its divisors is an integer number (160065551111166).

Almost surely, 2^{320131102222331} is an apocalyptic number.

320131102222331 is a deficient number, since it is larger than the sum of its proper divisors (1).

320131102222331 is an equidigital number, since it uses as much as digits as its factorization.

320131102222331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 320131102222331 its reverse (133222201131023), we get a palindrome (453353303353354).

The spelling of 320131102222331 in words is "three hundred twenty trillion, one hundred thirty-one billion, one hundred two million, two hundred twenty-two thousand, three hundred thirty-one".