11981368 has 16 divisors (see below), whose sum is σ = 25674480. Its totient is φ = 5134848.

The previous prime is 11981363. The next prime is 11981393. The reversal of 11981368 is 86318911.

11981368 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11981363) 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, 106921 + ... + 107032.

It is an arithmetic number, because the mean of its divisors is an integer number (1604655).

Almost surely, 2^11981368 is an apocalyptic number.

It is an amenable number.

11981368 is an abundant number, since it is smaller than the sum of its proper divisors (13693112).

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

11981368 is a wasteful number, since it uses less digits than its factorization.

11981368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213966 (or 213962 counting only the distinct ones).

The product of its digits is 10368, while the sum is 37.

The square root of 11981368 is about 3461.4112728770. The cubic root of 11981368 is about 228.8242964891.

The spelling of 11981368 in words is "eleven million, nine hundred eighty-one thousand, three hundred sixty-eight".