123442204100023 has 16 divisors (see below), whose sum is σ = 127858182720480. Its totient is φ = 119036903602176.

The previous prime is 123442204100003. The next prime is 123442204100099. The reversal of 123442204100023 is 320001402244321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123442204100023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123442204099964 and 123442204100000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123442204100003) 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, 126530911 + ... + 127502767.

It is an arithmetic number, because the mean of its divisors is an integer number (7991136420030).

Almost surely, 2^{123442204100023} is an apocalyptic number.

123442204100023 is a deficient number, since it is larger than the sum of its proper divisors (4415978620457).

123442204100023 is an equidigital number, since it uses as much as digits as its factorization.

123442204100023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977346.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 123442204100023 its reverse (320001402244321), we get a palindrome (443443606344344).

The spelling of 123442204100023 in words is "one hundred twenty-three trillion, four hundred forty-two billion, two hundred four million, one hundred thousand, twenty-three".