232320400457 has 2 divisors, whose sum is σ = 232320400458. Its totient is φ = 232320400456.

The previous prime is 232320400409. The next prime is 232320400463. The reversal of 232320400457 is 754004023232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174574388041 + 57746012416 = 417821^2 + 240304^2 .

It is a cyclic number.

It is not a de Polignac number, because 232320400457 - 2²⁰ = 232319351881 is a prime.

It is not a weakly prime, because it can be changed into another prime (232320408457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116160200228 + 116160200229.

It is an arithmetic number, because the mean of its divisors is an integer number (116160200229).

Almost surely, 2^232320400457 is an apocalyptic number.

It is an amenable number.

232320400457 is a deficient number, since it is larger than the sum of its proper divisors (1).

232320400457 is an equidigital number, since it uses as much as digits as its factorization.

232320400457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 32.

Adding to 232320400457 its reverse (754004023232), we get a palindrome (986324423689).

The spelling of 232320400457 in words is "two hundred thirty-two billion, three hundred twenty million, four hundred thousand, four hundred fifty-seven".