123542525045253 has 4 divisors (see below), whose sum is σ = 164723366727008. Its totient is φ = 82361683363500.

The previous prime is 123542525045237. The next prime is 123542525045309. The reversal of 123542525045253 is 352540525245321.

It is a happy number.

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 not a de Polignac number, because 123542525045253 - 2⁴ = 123542525045237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123542525045153) 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, 20590420840873 + ... + 20590420840878.

It is an arithmetic number, because the mean of its divisors is an integer number (41180841681752).

Almost surely, 2^{123542525045253} is an apocalyptic number.

It is an amenable number.

123542525045253 is a deficient number, since it is larger than the sum of its proper divisors (41180841681755).

123542525045253 is an equidigital number, since it uses as much as digits as its factorization.

123542525045253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41180841681754.

The product of its (nonzero) digits is 7200000, while the sum is 48.

The spelling of 123542525045253 in words is "one hundred twenty-three trillion, five hundred forty-two billion, five hundred twenty-five million, forty-five thousand, two hundred fifty-three".