315115125011 has 2 divisors, whose sum is σ = 315115125012. Its totient is φ = 315115125010.

The previous prime is 315115124983. The next prime is 315115125071. The reversal of 315115125011 is 110521511513.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 315115125011 - 2¹⁰ = 315115123987 is a prime.

It is not a weakly prime, because it can be changed into another prime (315115125071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157557562505 + 157557562506.

It is an arithmetic number, because the mean of its divisors is an integer number (157557562506).

Almost surely, 2^315115125011 is an apocalyptic number.

315115125011 is a deficient number, since it is larger than the sum of its proper divisors (1).

315115125011 is an equidigital number, since it uses as much as digits as its factorization.

315115125011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 750, while the sum is 26.

Adding to 315115125011 its reverse (110521511513), we get a palindrome (425636636524).

The spelling of 315115125011 in words is "three hundred fifteen billion, one hundred fifteen million, one hundred twenty-five thousand, eleven".