203242104123 has 16 divisors (see below), whose sum is σ = 277420725120. Its totient is φ = 132282045504.

The previous prime is 203242104097. The next prime is 203242104133. The reversal of 203242104123 is 321401242302.

It is a happy number.

It is not a de Polignac number, because 203242104123 - 2⁶ = 203242104059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203242104093 and 203242104102.

It is not an unprimeable number, because it can be changed into a prime (203242104133) 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, 88153 + ... + 643626.

It is an arithmetic number, because the mean of its divisors is an integer number (17338795320).

Almost surely, 2^203242104123 is an apocalyptic number.

203242104123 is a deficient number, since it is larger than the sum of its proper divisors (74178620997).

203242104123 is a wasteful number, since it uses less digits than its factorization.

203242104123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733978.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 203242104123 its reverse (321401242302), we get a palindrome (524643346425).

The spelling of 203242104123 in words is "two hundred three billion, two hundred forty-two million, one hundred four thousand, one hundred twenty-three".