125109080931 has 16 divisors (see below), whose sum is σ = 172657900800. Its totient is φ = 80486279328.

The previous prime is 125109080909. The next prime is 125109080947. The reversal of 125109080931 is 139080901521.

It is not a de Polignac number, because 125109080931 - 2¹¹ = 125109078883 is a prime.

It is a super-2 number, since 2×125109080931² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125109080931.

It is not an unprimeable number, because it can be changed into a prime (125109085931) 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, 228601 + ... + 549978.

It is an arithmetic number, because the mean of its divisors is an integer number (10791118800).

Almost surely, 2^125109080931 is an apocalyptic number.

125109080931 is a deficient number, since it is larger than the sum of its proper divisors (47548819869).

125109080931 is a wasteful number, since it uses less digits than its factorization.

125109080931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780458.

The product of its (nonzero) digits is 19440, while the sum is 39.

The spelling of 125109080931 in words is "one hundred twenty-five billion, one hundred nine million, eighty thousand, nine hundred thirty-one".