31232023322257 has 2 divisors, whose sum is σ = 31232023322258. Its totient is φ = 31232023322256.

The previous prime is 31232023322179. The next prime is 31232023322261. The reversal of 31232023322257 is 75222332023213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24712789670416 + 6519233651841 = 4971196^2 + 2553279^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31232023322257 is a prime.

It is not a weakly prime, because it can be changed into another prime (31232023322267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15616011661128 + 15616011661129.

It is an arithmetic number, because the mean of its divisors is an integer number (15616011661129).

Almost surely, 2^{31232023322257} is an apocalyptic number.

It is an amenable number.

31232023322257 is a deficient number, since it is larger than the sum of its proper divisors (1).

31232023322257 is an equidigital number, since it uses as much as digits as its factorization.

31232023322257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 37.

The spelling of 31232023322257 in words is "thirty-one trillion, two hundred thirty-two billion, twenty-three million, three hundred twenty-two thousand, two hundred fifty-seven".