11203031223 has 6 divisors (see below), whose sum is σ = 16182156224. Its totient is φ = 7468687476.

The previous prime is 11203031167. The next prime is 11203031243. The reversal of 11203031223 is 32213030211.

11203031223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11203031223 - 2²⁴ = 11186254007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11203031196 and 11203031205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11203031243) 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 5 ways as a sum of consecutive naturals, for example, 622390615 + ... + 622390632.

Almost surely, 2^11203031223 is an apocalyptic number.

11203031223 is a deficient number, since it is larger than the sum of its proper divisors (4979125001).

11203031223 is a wasteful number, since it uses less digits than its factorization.

11203031223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244781253 (or 1244781250 counting only the distinct ones).

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

Adding to 11203031223 its reverse (32213030211), we get a palindrome (43416061434).

The spelling of 11203031223 in words is "eleven billion, two hundred three million, thirty-one thousand, two hundred twenty-three".