125868138713 has 2 divisors, whose sum is σ = 125868138714. Its totient is φ = 125868138712.

The previous prime is 125868138707. The next prime is 125868138743. The reversal of 125868138713 is 317831868521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106826346649 + 19041792064 = 326843^2 + 137992^2 .

It is an emirp because it is prime and its reverse (317831868521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125868138713 - 2²⁰ = 125867090137 is a prime.

It is not a weakly prime, because it can be changed into another prime (125868138743) 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, 62934069356 + 62934069357.

It is an arithmetic number, because the mean of its divisors is an integer number (62934069357).

Almost surely, 2^125868138713 is an apocalyptic number.

It is an amenable number.

125868138713 is a deficient number, since it is larger than the sum of its proper divisors (1).

125868138713 is an equidigital number, since it uses as much as digits as its factorization.

125868138713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1935360, while the sum is 53.

The spelling of 125868138713 in words is "one hundred twenty-five billion, eight hundred sixty-eight million, one hundred thirty-eight thousand, seven hundred thirteen".