123134033220123 has 4 divisors (see below), whose sum is σ = 164178710960168. Its totient is φ = 82089355480080.

The previous prime is 123134033220113. The next prime is 123134033220131. The reversal of 123134033220123 is 321022330431321.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 123134033220123 - 2⁸ = 123134033219867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123134033220113) 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, 20522338870018 + ... + 20522338870023.

It is an arithmetic number, because the mean of its divisors is an integer number (41044677740042).

Almost surely, 2^{123134033220123} is an apocalyptic number.

123134033220123 is a deficient number, since it is larger than the sum of its proper divisors (41044677740045).

123134033220123 is an equidigital number, since it uses as much as digits as its factorization.

123134033220123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41044677740044.

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 123134033220123 its reverse (321022330431321), we get a palindrome (444156363651444).

The spelling of 123134033220123 in words is "one hundred twenty-three trillion, one hundred thirty-four billion, thirty-three million, two hundred twenty thousand, one hundred twenty-three".