315143321057 has 2 divisors, whose sum is σ = 315143321058. Its totient is φ = 315143321056.

The previous prime is 315143321033. The next prime is 315143321063. The reversal of 315143321057 is 750123341513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216298476241 + 98844844816 = 465079^2 + 314396^2 .

It is a cyclic number.

It is not a de Polignac number, because 315143321057 - 2⁶ = 315143320993 is a prime.

It is not a weakly prime, because it can be changed into another prime (315143321357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157571660528 + 157571660529.

It is an arithmetic number, because the mean of its divisors is an integer number (157571660529).

Almost surely, 2^315143321057 is an apocalyptic number.

It is an amenable number.

315143321057 is a deficient number, since it is larger than the sum of its proper divisors (1).

315143321057 is an equidigital number, since it uses as much as digits as its factorization.

315143321057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 35.

The spelling of 315143321057 in words is "three hundred fifteen billion, one hundred forty-three million, three hundred twenty-one thousand, fifty-seven".