123013234202123 has 4 divisors (see below), whose sum is σ = 123025852248000. Its totient is φ = 123000616156248.

The previous prime is 123013234202093. The next prime is 123013234202137. The reversal of 123013234202123 is 321202432310321.

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

It is a cyclic number.

It is not a de Polignac number, because 123013234202123 - 2³⁶ = 122944514725387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123013234202923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6309008315 + ... + 6309027812.

It is an arithmetic number, because the mean of its divisors is an integer number (30756463062000).

Almost surely, 2^{123013234202123} is an apocalyptic number.

123013234202123 is a deficient number, since it is larger than the sum of its proper divisors (12618045877).

123013234202123 is an equidigital number, since it uses as much as digits as its factorization.

123013234202123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12618045876.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 123013234202123 its reverse (321202432310321), we get a palindrome (444215666512444).

The spelling of 123013234202123 in words is "one hundred twenty-three trillion, thirteen billion, two hundred thirty-four million, two hundred two thousand, one hundred twenty-three".