242554344121 has 2 divisors, whose sum is σ = 242554344122. Its totient is φ = 242554344120.

The previous prime is 242554344119. The next prime is 242554344163. The reversal of 242554344121 is 121443455242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 176577284521 + 65977059600 = 420211^2 + 256860^2 .

It is a cyclic number.

It is not a de Polignac number, because 242554344121 - 2¹ = 242554344119 is a prime.

Together with 242554344119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (242554344521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121277172060 + 121277172061.

It is an arithmetic number, because the mean of its divisors is an integer number (121277172061).

Almost surely, 2^242554344121 is an apocalyptic number.

It is an amenable number.

242554344121 is a deficient number, since it is larger than the sum of its proper divisors (1).

242554344121 is an equidigital number, since it uses as much as digits as its factorization.

242554344121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 153600, while the sum is 37.

Adding to 242554344121 its reverse (121443455242), we get a palindrome (363997799363).

The spelling of 242554344121 in words is "two hundred forty-two billion, five hundred fifty-four million, three hundred forty-four thousand, one hundred twenty-one".