323131229957 has 2 divisors, whose sum is σ = 323131229958. Its totient is φ = 323131229956.

The previous prime is 323131229947. The next prime is 323131230001. The reversal of 323131229957 is 759922131323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 321518484676 + 1612745281 = 567026^2 + 40159^2 .

It is a cyclic number.

It is not a de Polignac number, because 323131229957 - 2³⁶ = 254411753221 is a prime.

It is a super-2 number, since 2×323131229957² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323131229917) 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 as a sum of consecutive naturals, namely, 161565614978 + 161565614979.

It is an arithmetic number, because the mean of its divisors is an integer number (161565614979).

Almost surely, 2^323131229957 is an apocalyptic number.

It is an amenable number.

323131229957 is a deficient number, since it is larger than the sum of its proper divisors (1).

323131229957 is an equidigital number, since it uses as much as digits as its factorization.

323131229957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 612360, while the sum is 47.

The spelling of 323131229957 in words is "three hundred twenty-three billion, one hundred thirty-one million, two hundred twenty-nine thousand, nine hundred fifty-seven".