125247412120 has 128 divisors (see below), whose sum is σ = 299635200000. Its totient is φ = 47043988992.

The previous prime is 125247412109. The next prime is 125247412123. The reversal of 125247412120 is 21214742521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125247412123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6129681 + ... + 6150079.

It is an arithmetic number, because the mean of its divisors is an integer number (2340900000).

Almost surely, 2^125247412120 is an apocalyptic number.

125247412120 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 125247412120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149817600000).

125247412120 is an abundant number, since it is smaller than the sum of its proper divisors (174387787880).

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

125247412120 is a wasteful number, since it uses less digits than its factorization.

125247412120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20585 (or 20581 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The spelling of 125247412120 in words is "one hundred twenty-five billion, two hundred forty-seven million, four hundred twelve thousand, one hundred twenty".