11113905 has 32 divisors (see below), whose sum is σ = 19555200. Its totient is φ = 5345280.

The previous prime is 11113901. The next prime is 11113913. The reversal of 11113905 is 50931111.

11113905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11113905 - 2² = 11113901 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11113901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31671 + ... + 32019.

It is an arithmetic number, because the mean of its divisors is an integer number (611100).

Almost surely, 2^11113905 is an apocalyptic number.

11113905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11113905 is a deficient number, since it is larger than the sum of its proper divisors (8441295).

11113905 is a wasteful number, since it uses less digits than its factorization.

11113905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561.

The product of its (nonzero) digits is 135, while the sum is 21.

The square root of 11113905 is about 3333.7523903254. The cubic root of 11113905 is about 223.1630183394.

The spelling of 11113905 in words is "eleven million, one hundred thirteen thousand, nine hundred five".