242142212113 has 2 divisors, whose sum is σ = 242142212114. Its totient is φ = 242142212112.

The previous prime is 242142212111. The next prime is 242142212189. The reversal of 242142212113 is 311212241242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220982727744 + 21159484369 = 470088^2 + 145463^2 .

It is a cyclic number.

It is not a de Polignac number, because 242142212113 - 2¹ = 242142212111 is a prime.

Together with 242142212111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (242142212111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121071106056 + 121071106057.

It is an arithmetic number, because the mean of its divisors is an integer number (121071106057).

Almost surely, 2^242142212113 is an apocalyptic number.

It is an amenable number.

242142212113 is a deficient number, since it is larger than the sum of its proper divisors (1).

242142212113 is an equidigital number, since it uses as much as digits as its factorization.

242142212113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536, while the sum is 25.

Adding to 242142212113 its reverse (311212241242), we get a palindrome (553354453355).

The spelling of 242142212113 in words is "two hundred forty-two billion, one hundred forty-two million, two hundred twelve thousand, one hundred thirteen".