2111100203 has 12 divisors (see below), whose sum is σ = 2253127320. Its totient is φ = 1977487776.

The previous prime is 2111100193. The next prime is 2111100221. The reversal of 2111100203 is 3020011112.

It is not a de Polignac number, because 2111100203 - 2³⁰ = 1037358379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111100223) 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 11 ways as a sum of consecutive naturals, for example, 725 + ... + 64982.

It is an arithmetic number, because the mean of its divisors is an integer number (187760610).

Almost surely, 2^2111100203 is an apocalyptic number.

2111100203 is a deficient number, since it is larger than the sum of its proper divisors (142027117).

2111100203 is an equidigital number, since it uses as much as digits as its factorization.

2111100203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65834 (or 65815 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2111100203 is about 45946.7104698476. The cubic root of 2111100203 is about 1282.8315009545.

Adding to 2111100203 its reverse (3020011112), we get a palindrome (5131111315).

The spelling of 2111100203 in words is "two billion, one hundred eleven million, one hundred thousand, two hundred three".