123132854718561 has 8 divisors (see below), whose sum is σ = 164341810781824. Its totient is φ = 82006234233840.

The previous prime is 123132854718529. The next prime is 123132854718617. The reversal of 123132854718561 is 165817458231321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123132854718561 - 2⁵ = 123132854718529 is a prime.

It is a super-2 number, since 2×123132854718561² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123132854718061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20583891145 + ... + 20583897126.

It is an arithmetic number, because the mean of its divisors is an integer number (20542726347728).

Almost surely, 2^{123132854718561} is an apocalyptic number.

It is an amenable number.

123132854718561 is a deficient number, since it is larger than the sum of its proper divisors (41208956063263).

123132854718561 is an equidigital number, since it uses as much as digits as its factorization.

123132854718561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41167789271.

The product of its digits is 9676800, while the sum is 57.

The spelling of 123132854718561 in words is "one hundred twenty-three trillion, one hundred thirty-two billion, eight hundred fifty-four million, seven hundred eighteen thousand, five hundred sixty-one".