320322111331 has 2 divisors, whose sum is σ = 320322111332. Its totient is φ = 320322111330.

The previous prime is 320322111311. The next prime is 320322111433. The reversal of 320322111331 is 133111223023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320322111331 - 2⁵ = 320322111299 is a prime.

It is a super-2 number, since 2×320322111331² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (320322111311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160161055665 + 160161055666.

It is an arithmetic number, because the mean of its divisors is an integer number (160161055666).

Almost surely, 2^320322111331 is an apocalyptic number.

320322111331 is a deficient number, since it is larger than the sum of its proper divisors (1).

320322111331 is an equidigital number, since it uses as much as digits as its factorization.

320322111331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 320322111331 its reverse (133111223023), we get a palindrome (453433334354).

The spelling of 320322111331 in words is "three hundred twenty billion, three hundred twenty-two million, one hundred eleven thousand, three hundred thirty-one".