125443323344521 has 16 divisors (see below), whose sum is σ = 155920414099968. Its totient is φ = 98269168536000.

The previous prime is 125443323344441. The next prime is 125443323344527.

125443323344521 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 125443323344521 - 2¹¹ = 125443323342473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125443323344527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6824238625 + ... + 6824257006.

It is an arithmetic number, because the mean of its divisors is an integer number (9745025881248).

Almost surely, 2^{125443323344521} is an apocalyptic number.

It is an amenable number.

125443323344521 is a deficient number, since it is larger than the sum of its proper divisors (30477090755447).

125443323344521 is a wasteful number, since it uses less digits than its factorization.

125443323344521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13648495752.

The product of its digits is 4147200, while the sum is 46.

The spelling of 125443323344521 in words is "one hundred twenty-five trillion, four hundred forty-three billion, three hundred twenty-three million, three hundred forty-four thousand, five hundred twenty-one".