125150520243 has 16 divisors (see below), whose sum is σ = 190816292096. Its totient is φ = 71473056480.

The previous prime is 125150520217. The next prime is 125150520283. The reversal of 125150520243 is 342025051521.

It is not a de Polignac number, because 125150520243 - 2²⁹ = 124613649331 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125150520243.

It is not an unprimeable number, because it can be changed into a prime (125150520283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1693228 + ... + 1765593.

It is an arithmetic number, because the mean of its divisors is an integer number (11926018256).

Almost surely, 2^125150520243 is an apocalyptic number.

125150520243 is a deficient number, since it is larger than the sum of its proper divisors (65665771853).

125150520243 is a wasteful number, since it uses less digits than its factorization.

125150520243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3460554.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 125150520243 its reverse (342025051521), we get a palindrome (467175571764).

The spelling of 125150520243 in words is "one hundred twenty-five billion, one hundred fifty million, five hundred twenty thousand, two hundred forty-three".