11312203 has 4 divisors (see below), whose sum is σ = 12928240. Its totient is φ = 9696168.

The previous prime is 11312183. The next prime is 11312207. The reversal of 11312203 is 30221311.

11312203 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 11312203 - 2⁹ = 11311691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11312207) 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, 808008 + ... + 808021.

It is an arithmetic number, because the mean of its divisors is an integer number (3232060).

Almost surely, 2^11312203 is an apocalyptic number.

11312203 is a deficient number, since it is larger than the sum of its proper divisors (1616037).

11312203 is an equidigital number, since it uses as much as digits as its factorization.

11312203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616036.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 11312203 is about 3363.3618598063. The cubic root of 11312203 is about 224.4824515924.

Adding to 11312203 its reverse (30221311), we get a palindrome (41533514).

The spelling of 11312203 in words is "eleven million, three hundred twelve thousand, two hundred three".