211423220103 has 4 divisors (see below), whose sum is σ = 281897626808. Its totient is φ = 140948813400.

The previous prime is 211423220101. The next prime is 211423220117. The reversal of 211423220103 is 301022324112.

211423220103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 211423220103 - 2¹ = 211423220101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211423220103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211423220101) 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 3 ways as a sum of consecutive naturals, for example, 35237203348 + ... + 35237203353.

It is an arithmetic number, because the mean of its divisors is an integer number (70474406702).

Almost surely, 2^211423220103 is an apocalyptic number.

211423220103 is a deficient number, since it is larger than the sum of its proper divisors (70474406705).

211423220103 is an equidigital number, since it uses as much as digits as its factorization.

211423220103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70474406704.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 211423220103 its reverse (301022324112), we get a palindrome (512445544215).

The spelling of 211423220103 in words is "two hundred eleven billion, four hundred twenty-three million, two hundred twenty thousand, one hundred three".