241643331356261 has 2 divisors, whose sum is σ = 241643331356262. Its totient is φ = 241643331356260.

The previous prime is 241643331356243. The next prime is 241643331356269. The reversal of 241643331356261 is 162653133346142.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211498674484036 + 30144656872225 = 14542994^2 + 5490415^2 .

It is a cyclic number.

It is not a de Polignac number, because 241643331356261 - 2¹⁴ = 241643331339877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (241643331356269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120821665678130 + 120821665678131.

It is an arithmetic number, because the mean of its divisors is an integer number (120821665678131).

Almost surely, 2^{241643331356261} is an apocalyptic number.

It is an amenable number.

241643331356261 is a deficient number, since it is larger than the sum of its proper divisors (1).

241643331356261 is an equidigital number, since it uses as much as digits as its factorization.

241643331356261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5598720, while the sum is 50.

The spelling of 241643331356261 in words is "two hundred forty-one trillion, six hundred forty-three billion, three hundred thirty-one million, three hundred fifty-six thousand, two hundred sixty-one".