242442112321 has 4 divisors (see below), whose sum is σ = 243711442944. Its totient is φ = 241172781700.

The previous prime is 242442112307. The next prime is 242442112349. The reversal of 242442112321 is 123211244242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 242442112321 - 2¹⁵ = 242442079553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242442112321.

It is not an unprimeable number, because it can be changed into a prime (242442112921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634665025 + ... + 634665406.

It is an arithmetic number, because the mean of its divisors is an integer number (60927860736).

Almost surely, 2^242442112321 is an apocalyptic number.

It is an amenable number.

242442112321 is a deficient number, since it is larger than the sum of its proper divisors (1269330623).

242442112321 is a wasteful number, since it uses less digits than its factorization.

242442112321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269330622.

The product of its digits is 6144, while the sum is 28.

Adding to 242442112321 its reverse (123211244242), we get a palindrome (365653356563).

The spelling of 242442112321 in words is "two hundred forty-two billion, four hundred forty-two million, one hundred twelve thousand, three hundred twenty-one".