111317333794209 has 27 divisors (see below), whose sum is σ = 161043418667313. Its totient is φ = 74095561434024.

The previous prime is 111317333794187. The next prime is 111317333794243. The reversal of 111317333794209 is 902497333713111.

It is a happy number.

The square root of 111317333794209 is 10550703.

It is a perfect power (a square), and thus also a powerful number.

111317333794209 is a `hidden beast` number, since 1 + 1 + 1 + 3 + 17 + 3 + 337 + 94 + 209 = 666.

It is not a de Polignac number, because 111317333794209 - 2³⁹ = 110767577980321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111317333795209) 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 in 26 ways as a sum of consecutive naturals, for example, 23390906172 + ... + 23390910930.

Almost surely, 2^{111317333794209} is an apocalyptic number.

111317333794209 is the 10550703-rd square number.

111317333794209 is the 5275352-nd centered octagonal number.

It is an amenable number.

111317333794209 is a deficient number, since it is larger than the sum of its proper divisors (49726084873104).

111317333794209 is an frugal number, since it uses more digits than its factorization.

111317333794209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11002 (or 5501 counting only the distinct ones).

The product of its (nonzero) digits is 2571912, while the sum is 54.

The spelling of 111317333794209 in words is "one hundred eleven trillion, three hundred seventeen billion, three hundred thirty-three million, seven hundred ninety-four thousand, two hundred nine".