231321223100057 has 2 divisors, whose sum is σ = 231321223100058. Its totient is φ = 231321223100056.

The previous prime is 231321223099937. The next prime is 231321223100063. The reversal of 231321223100057 is 750001322123132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228878804245081 + 2442418854976 = 15128741^2 + 1562824^2 .

It is a cyclic number.

It is not a de Polignac number, because 231321223100057 - 2³⁸ = 231046345193113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231321223099996 and 231321223100032.

It is not a weakly prime, because it can be changed into another prime (231321223100657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115660611550028 + 115660611550029.

It is an arithmetic number, because the mean of its divisors is an integer number (115660611550029).

Almost surely, 2^{231321223100057} is an apocalyptic number.

It is an amenable number.

231321223100057 is a deficient number, since it is larger than the sum of its proper divisors (1).

231321223100057 is an equidigital number, since it uses as much as digits as its factorization.

231321223100057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

Adding to 231321223100057 its reverse (750001322123132), we get a palindrome (981322545223189).

The spelling of 231321223100057 in words is "two hundred thirty-one trillion, three hundred twenty-one billion, two hundred twenty-three million, one hundred thousand, fifty-seven".