12510500317 has 12 divisors (see below), whose sum is σ = 14574565980. Its totient is φ = 10707418176.

The previous prime is 12510500293. The next prime is 12510500333. The reversal of 12510500317 is 71300501521.

It can be written as a sum of positive squares in 2 ways, for example, as 11497415076 + 1013085241 = 107226^2 + 31829^2 .

It is not a de Polignac number, because 12510500317 - 2¹¹ = 12510498269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12510500291 and 12510500300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12510590317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155392 + ... + 221737.

It is an arithmetic number, because the mean of its divisors is an integer number (1214547165).

Almost surely, 2^12510500317 is an apocalyptic number.

It is an amenable number.

12510500317 is a deficient number, since it is larger than the sum of its proper divisors (2064065663).

12510500317 is an equidigital number, since it uses as much as digits as its factorization.

12510500317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377820 (or 377813 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 25.

The spelling of 12510500317 in words is "twelve billion, five hundred ten million, five hundred thousand, three hundred seventeen".