11101985 has 16 divisors (see below), whose sum is σ = 14636160. Its totient is φ = 8046720.

The previous prime is 11101957. The next prime is 11102009. The reversal of 11101985 is 58910111.

It is not a de Polignac number, because 11101985 - 2⁶ = 11101921 is a prime.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 356 + ... + 4725.

It is an arithmetic number, because the mean of its divisors is an integer number (914760).

Almost surely, 2^11101985 is an apocalyptic number.

It is an amenable number.

11101985 is a deficient number, since it is larger than the sum of its proper divisors (3534175).

11101985 is a wasteful number, since it uses less digits than its factorization.

11101985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5128.

The product of its (nonzero) digits is 360, while the sum is 26.

The square root of 11101985 is about 3331.9641354612. The cubic root of 11101985 is about 223.0832067653.

The spelling of 11101985 in words is "eleven million, one hundred one thousand, nine hundred eighty-five".