11203113 has 4 divisors (see below), whose sum is σ = 14937488. Its totient is φ = 7468740.

The previous prime is 11203111. The next prime is 11203117. The reversal of 11203113 is 31130211.

11203113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11203113 - 2¹ = 11203111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11203111) 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, 1867183 + ... + 1867188.

It is an arithmetic number, because the mean of its divisors is an integer number (3734372).

Almost surely, 2^11203113 is an apocalyptic number.

It is an amenable number.

11203113 is a deficient number, since it is larger than the sum of its proper divisors (3734375).

11203113 is an equidigital number, since it uses as much as digits as its factorization.

11203113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3734374.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 11203113 is about 3347.1051671556. The cubic root of 11203113 is about 223.7585155358.

Adding to 11203113 its reverse (31130211), we get a palindrome (42333324).

The spelling of 11203113 in words is "eleven million, two hundred three thousand, one hundred thirteen".