11203000205 has 4 divisors (see below), whose sum is σ = 13443600252. Its totient is φ = 8962400160.

The previous prime is 11203000177. The next prime is 11203000213. The reversal of 11203000205 is 50200030211.

It is a happy number.

11203000205 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 can be written as a sum of positive squares in 2 ways, for example, as 6063113956 + 5139886249 = 77866^2 + 71693^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11203000205 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11203000205.

It is a congruent number.

It is an unprimeable number.

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, 1120300016 + ... + 1120300025.

It is an arithmetic number, because the mean of its divisors is an integer number (3360900063).

Almost surely, 2^11203000205 is an apocalyptic number.

It is an amenable number.

11203000205 is a deficient number, since it is larger than the sum of its proper divisors (2240600047).

11203000205 is an equidigital number, since it uses as much as digits as its factorization.

11203000205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240600046.

The product of its (nonzero) digits is 60, while the sum is 14.

Adding to 11203000205 its reverse (50200030211), we get a palindrome (61403030416).

The spelling of 11203000205 in words is "eleven billion, two hundred three million, two hundred five", and thus it is an aban number.