11121103 has 4 divisors (see below), whose sum is σ = 12709840. Its totient is φ = 9532368.

The previous prime is 11121083. The next prime is 11121139. The reversal of 11121103 is 30112111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11121103 - 2⁹ = 11120591 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11121103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 794358 + ... + 794371.

It is an arithmetic number, because the mean of its divisors is an integer number (3177460).

Almost surely, 2^11121103 is an apocalyptic number.

11121103 is a deficient number, since it is larger than the sum of its proper divisors (1588737).

11121103 is an equidigital number, since it uses as much as digits as its factorization.

11121103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588736.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 11121103 is about 3334.8317798654. The cubic root of 11121103 is about 223.2111856502.

Adding to 11121103 its reverse (30112111), we get a palindrome (41233214).

The spelling of 11121103 in words is "eleven million, one hundred twenty-one thousand, one hundred three".