11717231141718 has 12 divisors (see below), whose sum is σ = 25387334140428. Its totient is φ = 3905743713900.

The previous prime is 11717231141711. The next prime is 11717231141723. The reversal of 11717231141718 is 81714113271711.

11717231141718 is a `hidden beast` number, since 117 + 172 + 311 + 41 + 7 + 18 = 666.

It is a super-2 number, since 2×11717231141718² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11717231141711) 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 in 5 ways as a sum of consecutive naturals, for example, 325478642808 + ... + 325478642843.

It is an arithmetic number, because the mean of its divisors is an integer number (2115611178369).

Almost surely, 2^{11717231141718} is an apocalyptic number.

11717231141718 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11717231141718 is an abundant number, since it is smaller than the sum of its proper divisors (13670102998710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11717231141718 is a wasteful number, since it uses less digits than its factorization.

11717231141718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650957285659 (or 650957285656 counting only the distinct ones).

The product of its digits is 65856, while the sum is 45.

It can be divided in two parts, 1171723 and 1141718, that added together give a 4-th power (2313441 = 39⁴).

The spelling of 11717231141718 in words is "eleven trillion, seven hundred seventeen billion, two hundred thirty-one million, one hundred forty-one thousand, seven hundred eighteen".