123323131321331 has 2 divisors, whose sum is σ = 123323131321332. Its totient is φ = 123323131321330.

The previous prime is 123323131321321. The next prime is 123323131321333. The reversal of 123323131321331 is 133123131323321.

It is a strong prime.

It is an emirp because it is prime and its reverse (133123131323321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123323131321331 - 2²² = 123323127127027 is a prime.

It is a super-2 number, since 2×123323131321331² (a number of 29 digits) contains 22 as substring.

Together with 123323131321333, 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 (123323131321333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61661565660665 + 61661565660666.

It is an arithmetic number, because the mean of its divisors is an integer number (61661565660666).

Almost surely, 2^{123323131321331} is an apocalyptic number.

123323131321331 is a deficient number, since it is larger than the sum of its proper divisors (1).

123323131321331 is an equidigital number, since it uses as much as digits as its factorization.

123323131321331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 32.

Adding to 123323131321331 its reverse (133123131323321), we get a palindrome (256446262644652).

The spelling of 123323131321331 in words is "one hundred twenty-three trillion, three hundred twenty-three billion, one hundred thirty-one million, three hundred twenty-one thousand, three hundred thirty-one".