11811116 has 12 divisors (see below), whose sum is σ = 21173880. Its totient is φ = 5761440.

The previous prime is 11811109. The next prime is 11811187. The reversal of 11811116 is 61111811.

It is a super-3 number, since 3×11811116³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35846 + ... + 36173.

It is an arithmetic number, because the mean of its divisors is an integer number (1764490).

Almost surely, 2^11811116 is an apocalyptic number.

It is an amenable number.

11811116 is a deficient number, since it is larger than the sum of its proper divisors (9362764).

11811116 is a wasteful number, since it uses less digits than its factorization.

11811116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72064 (or 72062 counting only the distinct ones).

The product of its digits is 48, while the sum is 20.

The square root of 11811116 is about 3436.7304229456. The cubic root of 11811116 is about 227.7352780689.

Adding to 11811116 its reverse (61111811), we get a palindrome (72922927).

The spelling of 11811116 in words is "eleven million, eight hundred eleven thousand, one hundred sixteen".