11103906 has 32 divisors (see below), whose sum is σ = 24530688. Its totient is φ = 3322640.

The previous prime is 11103899. The next prime is 11103913. The reversal of 11103906 is 60930111.

It is a happy number.

11103906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11103899) and next prime (11103913).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4465 + ... + 6491.

It is an arithmetic number, because the mean of its divisors is an integer number (766584).

Almost surely, 2^11103906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11103906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12265344).

11103906 is an abundant number, since it is smaller than the sum of its proper divisors (13426782).

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

11103906 is a wasteful number, since it uses less digits than its factorization.

11103906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 11103906 is about 3332.2523914013. The cubic root of 11103906 is about 223.0960728766.

The spelling of 11103906 in words is "eleven million, one hundred three thousand, nine hundred six".