11203321203 has 6 divisors (see below), whose sum is σ = 16182575084. Its totient is φ = 7468880796.

The previous prime is 11203321189. The next prime is 11203321211. The reversal of 11203321203 is 30212330211.

It is not a de Polignac number, because 11203321203 - 2¹⁶ = 11203255667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11203321223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 622406725 + ... + 622406742.

Almost surely, 2^11203321203 is an apocalyptic number.

11203321203 is a deficient number, since it is larger than the sum of its proper divisors (4979253881).

11203321203 is a wasteful number, since it uses less digits than its factorization.

11203321203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244813473 (or 1244813470 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 11203321203 its reverse (30212330211), we get a palindrome (41415651414).

The spelling of 11203321203 in words is "eleven billion, two hundred three million, three hundred twenty-one thousand, two hundred three".