211444303223 has 4 divisors (see below), whose sum is σ = 211445270568. Its totient is φ = 211443335880.

The previous prime is 211444303199. The next prime is 211444303229. The reversal of 211444303223 is 322303444112.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 211444303223 - 2⁶ = 211444303159 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 (211444303229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16865 + ... + 650517.

It is an arithmetic number, because the mean of its divisors is an integer number (52861317642).

Almost surely, 2^211444303223 is an apocalyptic number.

211444303223 is a deficient number, since it is larger than the sum of its proper divisors (967345).

211444303223 is an equidigital number, since it uses as much as digits as its factorization.

211444303223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967344.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 211444303223 its reverse (322303444112), we get a palindrome (533747747335).

The spelling of 211444303223 in words is "two hundred eleven billion, four hundred forty-four million, three hundred three thousand, two hundred twenty-three".