242443510112261 has 2 divisors, whose sum is σ = 242443510112262. Its totient is φ = 242443510112260.

The previous prime is 242443510112233. The next prime is 242443510112339. The reversal of 242443510112261 is 162211015344242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208098108467236 + 34345401645025 = 14425606^2 + 5860495^2 .

It is a cyclic number.

It is not a de Polignac number, because 242443510112261 - 2⁶ = 242443510112197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242443510114261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121221755056130 + 121221755056131.

It is an arithmetic number, because the mean of its divisors is an integer number (121221755056131).

Almost surely, 2^{242443510112261} is an apocalyptic number.

It is an amenable number.

242443510112261 is a deficient number, since it is larger than the sum of its proper divisors (1).

242443510112261 is an equidigital number, since it uses as much as digits as its factorization.

242443510112261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 38.

The spelling of 242443510112261 in words is "two hundred forty-two trillion, four hundred forty-three billion, five hundred ten million, one hundred twelve thousand, two hundred sixty-one".