242544430123 has 4 divisors (see below), whose sum is σ = 256811749560. Its totient is φ = 228277110688.

The previous prime is 242544430091. The next prime is 242544430217. The reversal of 242544430123 is 321034445242.

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 242544430123 - 2⁵ = 242544430091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242544430823) 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, 7133659693 + ... + 7133659726.

It is an arithmetic number, because the mean of its divisors is an integer number (64202937390).

Almost surely, 2^242544430123 is an apocalyptic number.

242544430123 is a deficient number, since it is larger than the sum of its proper divisors (14267319437).

242544430123 is a wasteful number, since it uses less digits than its factorization.

242544430123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14267319436.

The product of its (nonzero) digits is 92160, while the sum is 34.

Adding to 242544430123 its reverse (321034445242), we get a palindrome (563578875365).

The spelling of 242544430123 in words is "two hundred forty-two billion, five hundred forty-four million, four hundred thirty thousand, one hundred twenty-three".