11003020203 has 16 divisors (see below), whose sum is σ = 16768087040. Its totient is φ = 6286847616.

The previous prime is 11003020201. The next prime is 11003020207. The reversal of 11003020203 is 30202030011.

It is a happy number.

It is not a de Polignac number, because 11003020203 - 2¹ = 11003020201 is a prime.

It is a super-2 number, since 2×11003020203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11003020201) 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 15 ways as a sum of consecutive naturals, for example, 307251 + ... + 341187.

It is an arithmetic number, because the mean of its divisors is an integer number (1048005440).

Almost surely, 2^11003020203 is an apocalyptic number.

11003020203 is a deficient number, since it is larger than the sum of its proper divisors (5765066837).

11003020203 is a wasteful number, since it uses less digits than its factorization.

11003020203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49386.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 11003020203 its reverse (30202030011), we get a palindrome (41205050214).

The spelling of 11003020203 in words is "eleven billion, three million, twenty thousand, two hundred three".