11821168 has 20 divisors (see below), whose sum is σ = 23643328. Its totient is φ = 5719680.

The previous prime is 11821163. The next prime is 11821169. The reversal of 11821168 is 86112811.

11821168 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11821163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11421 + ... + 12412.

Almost surely, 2^11821168 is an apocalyptic number.

It is an amenable number.

11821168 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11821168 is a wasteful number, since it uses less digits than its factorization.

11821168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23872 (or 23866 counting only the distinct ones).

The product of its digits is 768, while the sum is 28.

The square root of 11821168 is about 3438.1925484184. The cubic root of 11821168 is about 227.7998654149.

Adding to 11821168 its reverse (86112811), we get a palindrome (97933979).

The spelling of 11821168 in words is "eleven million, eight hundred twenty-one thousand, one hundred sixty-eight".