242042140313 has 2 divisors, whose sum is σ = 242042140314. Its totient is φ = 242042140312.

The previous prime is 242042140297. The next prime is 242042140339. The reversal of 242042140313 is 313041240242.

It is an a-pointer prime, because the next prime (242042140339) can be obtained adding 242042140313 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193285967449 + 48756172864 = 439643^2 + 220808^2 .

It is a cyclic number.

It is not a de Polignac number, because 242042140313 - 2⁴ = 242042140297 is a prime.

It is not a weakly prime, because it can be changed into another prime (242042140393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121021070156 + 121021070157.

It is an arithmetic number, because the mean of its divisors is an integer number (121021070157).

Almost surely, 2^242042140313 is an apocalyptic number.

It is an amenable number.

242042140313 is a deficient number, since it is larger than the sum of its proper divisors (1).

242042140313 is an equidigital number, since it uses as much as digits as its factorization.

242042140313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 242042140313 its reverse (313041240242), we get a palindrome (555083380555).

The spelling of 242042140313 in words is "two hundred forty-two billion, forty-two million, one hundred forty thousand, three hundred thirteen".