320104120331 has 2 divisors, whose sum is σ = 320104120332. Its totient is φ = 320104120330.

The previous prime is 320104120313. The next prime is 320104120333. The reversal of 320104120331 is 133021401023.

Together with previous prime (320104120313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320104120331 - 2³⁸ = 45226213387 is a prime.

It is a super-2 number, since 2×320104120331² (a number of 24 digits) contains 22 as substring.

Together with 320104120333, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (320104120333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160052060165 + 160052060166.

It is an arithmetic number, because the mean of its divisors is an integer number (160052060166).

Almost surely, 2^320104120331 is an apocalyptic number.

320104120331 is a deficient number, since it is larger than the sum of its proper divisors (1).

320104120331 is an equidigital number, since it uses as much as digits as its factorization.

320104120331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 320104120331 its reverse (133021401023), we get a palindrome (453125521354).

The spelling of 320104120331 in words is "three hundred twenty billion, one hundred four million, one hundred twenty thousand, three hundred thirty-one".