12500310157 has 2 divisors, whose sum is σ = 12500310158. Its totient is φ = 12500310156.

The previous prime is 12500310143. The next prime is 12500310217. The reversal of 12500310157 is 75101300521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6879209481 + 5621100676 = 82941^2 + 74974^2 .

It is a cyclic number.

It is not a de Polignac number, because 12500310157 - 2¹⁵ = 12500277389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12500310127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6250155078 + 6250155079.

It is an arithmetic number, because the mean of its divisors is an integer number (6250155079).

Almost surely, 2^12500310157 is an apocalyptic number.

It is an amenable number.

12500310157 is a deficient number, since it is larger than the sum of its proper divisors (1).

12500310157 is an equidigital number, since it uses as much as digits as its factorization.

12500310157 is an evil number, because the sum of its binary digits is even.

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

Adding to 12500310157 its reverse (75101300521), we get a palindrome (87601610678).

The spelling of 12500310157 in words is "twelve billion, five hundred million, three hundred ten thousand, one hundred fifty-seven".