125256063123 has 8 divisors (see below), whose sum is σ = 185564538000. Its totient is φ = 83504042064.

The previous prime is 125256063103. The next prime is 125256063133. The reversal of 125256063123 is 321360652521.

125256063123 is a `hidden beast` number, since 1 + 2 + 5 + 25 + 606 + 3 + 1 + 23 = 666.

It is not a de Polignac number, because 125256063123 - 2⁵ = 125256063091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125256063103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2319556698 + ... + 2319556751.

It is an arithmetic number, because the mean of its divisors is an integer number (23195567250).

Almost surely, 2^125256063123 is an apocalyptic number.

125256063123 is a deficient number, since it is larger than the sum of its proper divisors (60308474877).

125256063123 is an equidigital number, since it uses as much as digits as its factorization.

125256063123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4639113458 (or 4639113452 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 125256063123 in words is "one hundred twenty-five billion, two hundred fifty-six million, sixty-three thousand, one hundred twenty-three".