242122253423 has 2 divisors, whose sum is σ = 242122253424. Its totient is φ = 242122253422.

The previous prime is 242122253377. The next prime is 242122253453. The reversal of 242122253423 is 324352221242.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242122253423 - 2²⁰ = 242121204847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242122253423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242122253453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121061126711 + 121061126712.

It is an arithmetic number, because the mean of its divisors is an integer number (121061126712).

Almost surely, 2^242122253423 is an apocalyptic number.

242122253423 is a deficient number, since it is larger than the sum of its proper divisors (1).

242122253423 is an equidigital number, since it uses as much as digits as its factorization.

242122253423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 32.

Adding to 242122253423 its reverse (324352221242), we get a palindrome (566474474665).

The spelling of 242122253423 in words is "two hundred forty-two billion, one hundred twenty-two million, two hundred fifty-three thousand, four hundred twenty-three".