125500013120 has 112 divisors (see below), whose sum is σ = 308814191616. Its totient is φ = 48529152000.

The previous prime is 125500013099. The next prime is 125500013129. The reversal of 125500013120 is 21310005521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 125500013092 and 125500013101.

It is not an unprimeable number, because it can be changed into a prime (125500013129) 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, 10122125 + ... + 10134515.

It is an arithmetic number, because the mean of its divisors is an integer number (2757269568).

Almost surely, 2^125500013120 is an apocalyptic number.

125500013120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125500013120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154407095808).

125500013120 is an abundant number, since it is smaller than the sum of its proper divisors (183314178496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125500013120 is a wasteful number, since it uses less digits than its factorization.

125500013120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13460 (or 13450 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 125500013120 its reverse (21310005521), we get a palindrome (146810018641).

The spelling of 125500013120 in words is "one hundred twenty-five billion, five hundred million, thirteen thousand, one hundred twenty".