125031531320 has 32 divisors (see below), whose sum is σ = 297869238000. Its totient is φ = 47070693888.

The previous prime is 125031531307. The next prime is 125031531329. The reversal of 125031531320 is 23135130521.

It is a self number, because there is not a number n which added to its sum of digits gives 125031531320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125031531329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91934270 + ... + 91935629.

Almost surely, 2^125031531320 is an apocalyptic number.

125031531320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125031531320 is an abundant number, since it is smaller than the sum of its proper divisors (172837706680).

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

125031531320 is a wasteful number, since it uses less digits than its factorization.

125031531320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183869927 (or 183869923 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 125031531320 its reverse (23135130521), we get a palindrome (148166661841).

The spelling of 125031531320 in words is "one hundred twenty-five billion, thirty-one million, five hundred thirty-one thousand, three hundred twenty".