125153521023 has 16 divisors (see below), whose sum is σ = 170970760800. Its totient is φ = 81386680320.

The previous prime is 125153520997. The next prime is 125153521057. The reversal of 125153521023 is 320125351521.

It is not a de Polignac number, because 125153521023 - 2²⁶ = 125086412159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125153525023) 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, 657183 + ... + 825951.

It is an arithmetic number, because the mean of its divisors is an integer number (10685672550).

Almost surely, 2^125153521023 is an apocalyptic number.

125153521023 is a deficient number, since it is larger than the sum of its proper divisors (45817239777).

125153521023 is a wasteful number, since it uses less digits than its factorization.

125153521023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174842.

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 125153521023 its reverse (320125351521), we get a palindrome (445278872544).

The spelling of 125153521023 in words is "one hundred twenty-five billion, one hundred fifty-three million, five hundred twenty-one thousand, twenty-three".