125354343323903 has 2 divisors, whose sum is σ = 125354343323904. Its totient is φ = 125354343323902.

The previous prime is 125354343323819. The next prime is 125354343324079. The reversal of 125354343323903 is 309323343453521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125354343323903 - 2³⁸ = 125079465416959 is a prime.

It is a super-2 number, since 2×125354343323903² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125354343325903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62677171661951 + 62677171661952.

It is an arithmetic number, because the mean of its divisors is an integer number (62677171661952).

Almost surely, 2^{125354343323903} is an apocalyptic number.

125354343323903 is a deficient number, since it is larger than the sum of its proper divisors (1).

125354343323903 is an equidigital number, since it uses as much as digits as its factorization.

125354343323903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10497600, while the sum is 50.

The spelling of 125354343323903 in words is "one hundred twenty-five trillion, three hundred fifty-four billion, three hundred forty-three million, three hundred twenty-three thousand, nine hundred three".