125327343723521 has 4 divisors (see below), whose sum is σ = 125327372953344. Its totient is φ = 125327314493700.

The previous prime is 125327343723497. The next prime is 125327343723551.

125327343723521 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125327343723521 - 2⁶ = 125327343723457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125327343723521.

It is not an unprimeable number, because it can be changed into a prime (125327343723551) 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, 6785225 + ... + 17224806.

It is an arithmetic number, because the mean of its divisors is an integer number (31331843238336).

Almost surely, 2^{125327343723521} is an apocalyptic number.

It is an amenable number.

125327343723521 is a deficient number, since it is larger than the sum of its proper divisors (29229823).

125327343723521 is an equidigital number, since it uses as much as digits as its factorization.

125327343723521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29229822.

The product of its digits is 6350400, while the sum is 50.

The spelling of 125327343723521 in words is "one hundred twenty-five trillion, three hundred twenty-seven billion, three hundred forty-three million, seven hundred twenty-three thousand, five hundred twenty-one".