211123220103 has 12 divisors (see below), whose sum is σ = 307916499280. Its totient is φ = 139382319456.

The previous prime is 211123220089. The next prime is 211123220137. The reversal of 211123220103 is 301022321112.

It is not a de Polignac number, because 211123220103 - 2¹⁴ = 211123203719 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 (211123420103) 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, 113873518 + ... + 113875371.

Almost surely, 2^211123220103 is an apocalyptic number.

211123220103 is a deficient number, since it is larger than the sum of its proper divisors (96793279177).

211123220103 is a wasteful number, since it uses less digits than its factorization.

211123220103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227748998 (or 227748995 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 211123220103 its reverse (301022321112), we get a palindrome (512145541215).

The spelling of 211123220103 in words is "two hundred eleven billion, one hundred twenty-three million, two hundred twenty thousand, one hundred three".