125331051543 has 4 divisors (see below), whose sum is σ = 167108068728. Its totient is φ = 83554034360.

The previous prime is 125331051539. The next prime is 125331051551. The reversal of 125331051543 is 345150133521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125331051543 - 2² = 125331051539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125331051523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20888508588 + ... + 20888508593.

It is an arithmetic number, because the mean of its divisors is an integer number (41777017182).

Almost surely, 2^125331051543 is an apocalyptic number.

125331051543 is a deficient number, since it is larger than the sum of its proper divisors (41777017185).

125331051543 is an equidigital number, since it uses as much as digits as its factorization.

125331051543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41777017184.

The product of its (nonzero) digits is 27000, while the sum is 33.

The spelling of 125331051543 in words is "one hundred twenty-five billion, three hundred thirty-one million, fifty-one thousand, five hundred forty-three".