125418941215199 has 2 divisors, whose sum is σ = 125418941215200. Its totient is φ = 125418941215198.

The previous prime is 125418941215189. The next prime is 125418941215201. The reversal of 125418941215199 is 991512149814521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125418941215199 - 2²⁰ = 125418940166623 is a prime.

It is a super-3 number, since 3×125418941215199³ (a number of 43 digits) contains 333 as substring.

Together with 125418941215201, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125418941215109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62709470607599 + 62709470607600.

It is an arithmetic number, because the mean of its divisors is an integer number (62709470607600).

Almost surely, 2^{125418941215199} is an apocalyptic number.

125418941215199 is a deficient number, since it is larger than the sum of its proper divisors (1).

125418941215199 is an equidigital number, since it uses as much as digits as its factorization.

125418941215199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9331200, while the sum is 62.

The spelling of 125418941215199 in words is "one hundred twenty-five trillion, four hundred eighteen billion, nine hundred forty-one million, two hundred fifteen thousand, one hundred ninety-nine".