125131381250 has 24 divisors (see below), whose sum is σ = 234606335796. Its totient is φ = 50052550000.

The previous prime is 125131381241. The next prime is 125131381253. The reversal of 125131381250 is 52183131521.

It can be written as a sum of positive squares in 6 ways, for example, as 7860063649 + 117271317601 = 88657^2 + 342449^2 .

It is not an unprimeable number, because it can be changed into a prime (125131381253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10004261 + ... + 10016760.

Almost surely, 2^125131381250 is an apocalyptic number.

125131381250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125131381250 is a deficient number, since it is larger than the sum of its proper divisors (109474954546).

125131381250 is an frugal number, since it uses more digits than its factorization.

125131381250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20021048 (or 20021028 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 125131381250 in words is "one hundred twenty-five billion, one hundred thirty-one million, three hundred eighty-one thousand, two hundred fifty".