242120121323 has 2 divisors, whose sum is σ = 242120121324. Its totient is φ = 242120121322.

The previous prime is 242120121319. The next prime is 242120121359. The reversal of 242120121323 is 323121021242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242120121323 - 2² = 242120121319 is a prime.

It is not a weakly prime, because it can be changed into another prime (242120121623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121060060661 + 121060060662.

It is an arithmetic number, because the mean of its divisors is an integer number (121060060662).

Almost surely, 2^242120121323 is an apocalyptic number.

242120121323 is a deficient number, since it is larger than the sum of its proper divisors (1).

242120121323 is an equidigital number, since it uses as much as digits as its factorization.

242120121323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 242120121323 its reverse (323121021242), we get a palindrome (565241142565).

The spelling of 242120121323 in words is "two hundred forty-two billion, one hundred twenty million, one hundred twenty-one thousand, three hundred twenty-three".