11997112 has 16 divisors (see below), whose sum is σ = 22803840. Its totient is φ = 5916096.

The previous prime is 11997109. The next prime is 11997137. The reversal of 11997112 is 21179911.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9688 + ... + 10855.

It is an arithmetic number, because the mean of its divisors is an integer number (1425240).

Almost surely, 2^11997112 is an apocalyptic number.

It is an amenable number.

11997112 is a deficient number, since it is larger than the sum of its proper divisors (10806728).

11997112 is a wasteful number, since it uses less digits than its factorization.

11997112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20622 (or 20618 counting only the distinct ones).

The product of its digits is 1134, while the sum is 31.

The square root of 11997112 is about 3463.6847431601. The cubic root of 11997112 is about 228.9244807330.

The spelling of 11997112 in words is "eleven million, nine hundred ninety-seven thousand, one hundred twelve".