11191192112 has 20 divisors (see below), whose sum is σ = 21684980376. Its totient is φ = 5595068160.

The previous prime is 11191192099. The next prime is 11191192127. The reversal of 11191192112 is 21129119111.

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, 185912 + ... + 238632.

Almost surely, 2^11191192112 is an apocalyptic number.

It is an amenable number.

11191192112 is a deficient number, since it is larger than the sum of its proper divisors (10493788264).

11191192112 is a wasteful number, since it uses less digits than its factorization.

11191192112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65996 (or 65990 counting only the distinct ones).

The product of its digits is 324, while the sum is 29.

The spelling of 11191192112 in words is "eleven billion, one hundred ninety-one million, one hundred ninety-two thousand, one hundred twelve".