11321030203 has 4 divisors (see below), whose sum is σ = 12938320240. Its totient is φ = 9703740168.

The previous prime is 11321030183. The next prime is 11321030219. The reversal of 11321030203 is 30203012311.

11321030203 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 a de Polignac number, because none of the positive numbers 2^k-11321030203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11321030233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 808645008 + ... + 808645021.

It is an arithmetic number, because the mean of its divisors is an integer number (3234580060).

Almost surely, 2^11321030203 is an apocalyptic number.

11321030203 is a deficient number, since it is larger than the sum of its proper divisors (1617290037).

11321030203 is an equidigital number, since it uses as much as digits as its factorization.

11321030203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617290036.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 11321030203 its reverse (30203012311), we get a palindrome (41524042514).

The spelling of 11321030203 in words is "eleven billion, three hundred twenty-one million, thirty thousand, two hundred three".