125604511013 has 2 divisors, whose sum is σ = 125604511014. Its totient is φ = 125604511012.

The previous prime is 125604510979. The next prime is 125604511027. The reversal of 125604511013 is 310115406521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87794875204 + 37809635809 = 296302^2 + 194447^2 .

It is a cyclic number.

It is not a de Polignac number, because 125604511013 - 2²⁶ = 125537402149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125604511213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62802255506 + 62802255507.

It is an arithmetic number, because the mean of its divisors is an integer number (62802255507).

Almost surely, 2^125604511013 is an apocalyptic number.

It is an amenable number.

125604511013 is a deficient number, since it is larger than the sum of its proper divisors (1).

125604511013 is an equidigital number, since it uses as much as digits as its factorization.

125604511013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 125604511013 its reverse (310115406521), we get a palindrome (435719917534).

The spelling of 125604511013 in words is "one hundred twenty-five billion, six hundred four million, five hundred eleven thousand, thirteen".