113565564121489 has 2 divisors, whose sum is σ = 113565564121490. Its totient is φ = 113565564121488.

The previous prime is 113565564121397. The next prime is 113565564121591. The reversal of 113565564121489 is 984121465565311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111919641907264 + 1645922214225 = 10579208^2 + 1282935^2 .

It is a cyclic number.

It is not a de Polignac number, because 113565564121489 - 2¹³ = 113565564113297 is a prime.

It is not a weakly prime, because it can be changed into another prime (113565564121189) 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, 56782782060744 + 56782782060745.

It is an arithmetic number, because the mean of its divisors is an integer number (56782782060745).

Almost surely, 2^{113565564121489} is an apocalyptic number.

It is an amenable number.

113565564121489 is a deficient number, since it is larger than the sum of its proper divisors (1).

113565564121489 is an equidigital number, since it uses as much as digits as its factorization.

113565564121489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104000, while the sum is 61.

The spelling of 113565564121489 in words is "one hundred thirteen trillion, five hundred sixty-five billion, five hundred sixty-four million, one hundred twenty-one thousand, four hundred eighty-nine".