123243542114242 has 64 divisors (see below), whose sum is σ = 203720053477248. Its totient is φ = 55451547648000.

The previous prime is 123243542114191. The next prime is 123243542114257. The reversal of 123243542114242 is 242411245342321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 123243542114195 and 123243542114204.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29060017242 + ... + 29060021482.

It is an arithmetic number, because the mean of its divisors is an integer number (3183125835582).

Almost surely, 2^{123243542114242} is an apocalyptic number.

123243542114242 is a deficient number, since it is larger than the sum of its proper divisors (80476511363006).

123243542114242 is a wasteful number, since it uses less digits than its factorization.

123243542114242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11395.

The product of its digits is 368640, while the sum is 40.

Adding to 123243542114242 its reverse (242411245342321), we get a palindrome (365654787456563).

The spelling of 123243542114242 in words is "one hundred twenty-three trillion, two hundred forty-three billion, five hundred forty-two million, one hundred fourteen thousand, two hundred forty-two".