125200838523899 has 2 divisors, whose sum is σ = 125200838523900. Its totient is φ = 125200838523898.

The previous prime is 125200838523889. The next prime is 125200838523961. The reversal of 125200838523899 is 998325838002521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125200838523899 - 2⁴⁰ = 124101326896123 is a prime.

It is not a weakly prime, because it can be changed into another prime (125200838523889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62600419261949 + 62600419261950.

It is an arithmetic number, because the mean of its divisors is an integer number (62600419261950).

Almost surely, 2^{125200838523899} is an apocalyptic number.

125200838523899 is a deficient number, since it is larger than the sum of its proper divisors (1).

125200838523899 is an equidigital number, since it uses as much as digits as its factorization.

125200838523899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 74649600, while the sum is 65.

The spelling of 125200838523899 in words is "one hundred twenty-five trillion, two hundred billion, eight hundred thirty-eight million, five hundred twenty-three thousand, eight hundred ninety-nine".