11810903 has 12 divisors (see below), whose sum is σ = 13544928. Its totient is φ = 10258560.

The previous prime is 11810879. The next prime is 11810947. The reversal of 11810903 is 30901811.

11810903 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 11810903 - 2²² = 7616599 is a prime.

It is a Smith number, since the sum of its digits (23) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11810963) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 818 + ... + 4928.

It is an arithmetic number, because the mean of its divisors is an integer number (1128744).

Almost surely, 2^11810903 is an apocalyptic number.

11810903 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11810903 is a deficient number, since it is larger than the sum of its proper divisors (1734025).

11810903 is a wasteful number, since it uses less digits than its factorization.

11810903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4154 (or 4141 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 11810903 is about 3436.6994340501. The cubic root of 11810903 is about 227.7339090787.

The spelling of 11810903 in words is "eleven million, eight hundred ten thousand, nine hundred three".