211111232103 has 6 divisors (see below), whose sum is σ = 304938446384. Its totient is φ = 140740821396.

The previous prime is 211111232093. The next prime is 211111232147. The reversal of 211111232103 is 301232111112.

211111232103 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 211111232103 - 2⁵ = 211111232071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211111232183) 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 5 ways as a sum of consecutive naturals, for example, 11728401775 + ... + 11728401792.

Almost surely, 2^211111232103 is an apocalyptic number.

211111232103 is a deficient number, since it is larger than the sum of its proper divisors (93827214281).

211111232103 is a wasteful number, since it uses less digits than its factorization.

211111232103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23456803573 (or 23456803570 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 211111232103 its reverse (301232111112), we get a palindrome (512343343215).

The spelling of 211111232103 in words is "two hundred eleven billion, one hundred eleven million, two hundred thirty-two thousand, one hundred three".