2111123203 has 12 divisors (see below), whose sum is σ = 2457495720. Its totient is φ = 1808282112.

The previous prime is 2111123173. The next prime is 2111123213. The reversal of 2111123203 is 3023211112.

It is a de Polignac number, because none of the positive numbers 2^k-2111123203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111123213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60483 + ... + 88771.

It is an arithmetic number, because the mean of its divisors is an integer number (204791310).

Almost surely, 2^2111123203 is an apocalyptic number.

2111123203 is a deficient number, since it is larger than the sum of its proper divisors (346372517).

2111123203 is a wasteful number, since it uses less digits than its factorization.

2111123203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29826 (or 29819 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2111123203 is about 45946.9607591188. The cubic root of 2111123203 is about 1282.8361596656.

Adding to 2111123203 its reverse (3023211112), we get a palindrome (5134334315).

The spelling of 2111123203 in words is "two billion, one hundred eleven million, one hundred twenty-three thousand, two hundred three".