125331023505 has 32 divisors (see below), whose sum is σ = 209565262080. Its totient is φ = 63840142080.

The previous prime is 125331023491. The next prime is 125331023527. The reversal of 125331023505 is 505320133521.

It is not a de Polignac number, because 125331023505 - 2⁸ = 125331023249 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46750 + ... + 502839.

It is an arithmetic number, because the mean of its divisors is an integer number (6548914440).

Almost surely, 2^125331023505 is an apocalyptic number.

125331023505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125331023505 is a deficient number, since it is larger than the sum of its proper divisors (84234238575).

125331023505 is a wasteful number, since it uses less digits than its factorization.

125331023505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550281.

The product of its (nonzero) digits is 13500, while the sum is 30.

The spelling of 125331023505 in words is "one hundred twenty-five billion, three hundred thirty-one million, twenty-three thousand, five hundred five".