113266191169 has 2 divisors, whose sum is σ = 113266191170. Its totient is φ = 113266191168.

The previous prime is 113266191097. The next prime is 113266191173. The reversal of 113266191169 is 961191662311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94733452944 + 18532738225 = 307788^2 + 136135^2 .

It is an emirp because it is prime and its reverse (961191662311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113266191169 - 2⁹ = 113266190657 is a prime.

It is a super-2 number, since 2×113266191169² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (113266191569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56633095584 + 56633095585.

It is an arithmetic number, because the mean of its divisors is an integer number (56633095585).

Almost surely, 2^113266191169 is an apocalyptic number.

It is an amenable number.

113266191169 is a deficient number, since it is larger than the sum of its proper divisors (1).

113266191169 is an equidigital number, since it uses as much as digits as its factorization.

113266191169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 46.

It can be divided in two parts, 1132661 and 91169, that added together give a triangular number (1223830 = T₁₅₆₄).

The spelling of 113266191169 in words is "one hundred thirteen billion, two hundred sixty-six million, one hundred ninety-one thousand, one hundred sixty-nine".