11261133784289 has 2 divisors, whose sum is σ = 11261133784290. Its totient is φ = 11261133784288.

The previous prime is 11261133784267. The next prime is 11261133784331. The reversal of 11261133784289 is 98248733116211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7616451883264 + 3644681901025 = 2759792^2 + 1909105^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11261133784289 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11261133784259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5630566892144 + 5630566892145.

It is an arithmetic number, because the mean of its divisors is an integer number (5630566892145).

Almost surely, 2^{11261133784289} is an apocalyptic number.

It is an amenable number.

11261133784289 is a deficient number, since it is larger than the sum of its proper divisors (1).

11261133784289 is an equidigital number, since it uses as much as digits as its factorization.

11261133784289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3483648, while the sum is 56.

The spelling of 11261133784289 in words is "eleven trillion, two hundred sixty-one billion, one hundred thirty-three million, seven hundred eighty-four thousand, two hundred eighty-nine".