315125316241 has 2 divisors, whose sum is σ = 315125316242. Its totient is φ = 315125316240.

The previous prime is 315125316217. The next prime is 315125316263. The reversal of 315125316241 is 142613521513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180365843025 + 134759473216 = 424695^2 + 367096^2 .

It is a cyclic number.

It is not a de Polignac number, because 315125316241 - 2³⁷ = 177686362769 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 315125316197 and 315125316206.

It is not a weakly prime, because it can be changed into another prime (315125316041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157562658120 + 157562658121.

It is an arithmetic number, because the mean of its divisors is an integer number (157562658121).

Almost surely, 2^315125316241 is an apocalyptic number.

It is an amenable number.

315125316241 is a deficient number, since it is larger than the sum of its proper divisors (1).

315125316241 is an equidigital number, since it uses as much as digits as its factorization.

315125316241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 34.

Adding to 315125316241 its reverse (142613521513), we get a palindrome (457738837754).

The spelling of 315125316241 in words is "three hundred fifteen billion, one hundred twenty-five million, three hundred sixteen thousand, two hundred forty-one".