11121203 has 4 divisors (see below), whose sum is σ = 11157048. Its totient is φ = 11085360.

The previous prime is 11121197. The next prime is 11121217. The reversal of 11121203 is 30212111.

11121203 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.

It is a cyclic number.

It is not a de Polignac number, because 11121203 - 2⁶ = 11121139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11121223) 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, 17453 + ... + 18078.

It is an arithmetic number, because the mean of its divisors is an integer number (2789262).

Almost surely, 2^11121203 is an apocalyptic number.

11121203 is a deficient number, since it is larger than the sum of its proper divisors (35845).

11121203 is an equidigital number, since it uses as much as digits as its factorization.

11121203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35844.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 11121203 is about 3334.8467730917. The cubic root of 11121203 is about 223.2118546801.

Adding to 11121203 its reverse (30212111), we get a palindrome (41333314).

The spelling of 11121203 in words is "eleven million, one hundred twenty-one thousand, two hundred three".