231320110057 has 2 divisors, whose sum is σ = 231320110058. Its totient is φ = 231320110056.

The previous prime is 231320110013. The next prime is 231320110111. The reversal of 231320110057 is 750011023132.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214618166361 + 16701943696 = 463269^2 + 129236^2 .

It is a cyclic number.

It is not a de Polignac number, because 231320110057 - 2²³ = 231311721449 is a prime.

It is not a weakly prime, because it can be changed into another prime (231320119057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115660055028 + 115660055029.

It is an arithmetic number, because the mean of its divisors is an integer number (115660055029).

Almost surely, 2^231320110057 is an apocalyptic number.

It is an amenable number.

231320110057 is a deficient number, since it is larger than the sum of its proper divisors (1).

231320110057 is an equidigital number, since it uses as much as digits as its factorization.

231320110057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 25.

Adding to 231320110057 its reverse (750011023132), we get a palindrome (981331133189).

The spelling of 231320110057 in words is "two hundred thirty-one billion, three hundred twenty million, one hundred ten thousand, fifty-seven".