125255251431243 has 24 divisors (see below), whose sum is σ = 186761420318720. Its totient is φ = 80809449320880.

The previous prime is 125255251431239. The next prime is 125255251431251. The reversal of 125255251431243 is 342134152552521.

125255251431243 is a `hidden beast` number, since 1 + 2 + 5 + 2 + 5 + 5 + 2 + 514 + 3 + 124 + 3 = 666.

It is not a de Polignac number, because 125255251431243 - 2² = 125255251431239 is a prime.

It is a super-2 number, since 2×125255251431243² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125255251431743) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63710328 + ... + 65646906.

Almost surely, 2^{125255251431243} is an apocalyptic number.

125255251431243 is a deficient number, since it is larger than the sum of its proper divisors (61506168887477).

125255251431243 is a wasteful number, since it uses less digits than its factorization.

125255251431243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2168439 (or 2168436 counting only the distinct ones).

The product of its digits is 1440000, while the sum is 45.

The spelling of 125255251431243 in words is "one hundred twenty-five trillion, two hundred fifty-five billion, two hundred fifty-one million, four hundred thirty-one thousand, two hundred forty-three".