242311818577 has 2 divisors, whose sum is σ = 242311818578. Its totient is φ = 242311818576.

The previous prime is 242311818517. The next prime is 242311818631. The reversal of 242311818577 is 775818113242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189761299456 + 52550519121 = 435616^2 + 229239^2 .

It is a cyclic number.

It is not a de Polignac number, because 242311818577 - 2¹¹ = 242311816529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242311818577.

It is not a weakly prime, because it can be changed into another prime (242311818517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121155909288 + 121155909289.

It is an arithmetic number, because the mean of its divisors is an integer number (121155909289).

Almost surely, 2^242311818577 is an apocalyptic number.

It is an amenable number.

242311818577 is a deficient number, since it is larger than the sum of its proper divisors (1).

242311818577 is an equidigital number, since it uses as much as digits as its factorization.

242311818577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 752640, while the sum is 49.

The spelling of 242311818577 in words is "two hundred forty-two billion, three hundred eleven million, eight hundred eighteen thousand, five hundred seventy-seven".