11331117817717 has 2 divisors, whose sum is σ = 11331117817718. Its totient is φ = 11331117817716.

The previous prime is 11331117817709. The next prime is 11331117817727. The reversal of 11331117817717 is 71771871113311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8301826301521 + 3029291516196 = 2881289^2 + 1740486^2 .

It is a cyclic number.

It is not a de Polignac number, because 11331117817717 - 2³ = 11331117817709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11331117817727) 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, 5665558908858 + 5665558908859.

It is an arithmetic number, because the mean of its divisors is an integer number (5665558908859).

Almost surely, 2^{11331117817717} is an apocalyptic number.

It is an amenable number.

11331117817717 is a deficient number, since it is larger than the sum of its proper divisors (1).

11331117817717 is an equidigital number, since it uses as much as digits as its factorization.

11331117817717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172872, while the sum is 49.

The spelling of 11331117817717 in words is "eleven trillion, three hundred thirty-one billion, one hundred seventeen million, eight hundred seventeen thousand, seven hundred seventeen".