11003031203 has 32 divisors (see below), whose sum is σ = 11844403200. Its totient is φ = 10199094400.

The previous prime is 11003031199. The next prime is 11003031211. The reversal of 11003031203 is 30213030011.

It is a cyclic number.

It is not a de Polignac number, because 11003031203 - 2² = 11003031199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11003031223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28728350 + ... + 28728732.

It is an arithmetic number, because the mean of its divisors is an integer number (370137600).

Almost surely, 2^11003031203 is an apocalyptic number.

11003031203 is a deficient number, since it is larger than the sum of its proper divisors (841371997).

11003031203 is a wasteful number, since it uses less digits than its factorization.

11003031203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 11003031203 its reverse (30213030011), we get a palindrome (41216061214).

It can be divided in two parts, 1100 and 3031203, that added together give a palindrome (3032303).

The spelling of 11003031203 in words is "eleven billion, three million, thirty-one thousand, two hundred three".