12500125013 has 2 divisors, whose sum is σ = 12500125014. Its totient is φ = 12500125012.

The previous prime is 12500125003. The next prime is 12500125019. The reversal of 12500125013 is 31052100521.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6388325329 + 6111799684 = 79927^2 + 78178^2 .

It is a cyclic number.

It is not a de Polignac number, because 12500125013 - 2¹⁰ = 12500123989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12500125019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6250062506 + 6250062507.

It is an arithmetic number, because the mean of its divisors is an integer number (6250062507).

Almost surely, 2^12500125013 is an apocalyptic number.

It is an amenable number.

12500125013 is a deficient number, since it is larger than the sum of its proper divisors (1).

12500125013 is an equidigital number, since it uses as much as digits as its factorization.

12500125013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 12500125013 its reverse (31052100521), we get a palindrome (43552225534).

The spelling of 12500125013 in words is "twelve billion, five hundred million, one hundred twenty-five thousand, thirteen".