242142303653 has 2 divisors, whose sum is σ = 242142303654. Its totient is φ = 242142303652.

The previous prime is 242142303593. The next prime is 242142303659. The reversal of 242142303653 is 356303241242.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126336171844 + 115806131809 = 355438^2 + 340303^2 .

It is a cyclic number.

It is not a de Polignac number, because 242142303653 - 2⁸ = 242142303397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242142303659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121071151826 + 121071151827.

It is an arithmetic number, because the mean of its divisors is an integer number (121071151827).

Almost surely, 2^242142303653 is an apocalyptic number.

It is an amenable number.

242142303653 is a deficient number, since it is larger than the sum of its proper divisors (1).

242142303653 is an equidigital number, since it uses as much as digits as its factorization.

242142303653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 35.

Adding to 242142303653 its reverse (356303241242), we get a palindrome (598445544895).

The spelling of 242142303653 in words is "two hundred forty-two billion, one hundred forty-two million, three hundred three thousand, six hundred fifty-three".