211423344023 has 2 divisors, whose sum is σ = 211423344024. Its totient is φ = 211423344022.

The previous prime is 211423344017. The next prime is 211423344071. The reversal of 211423344023 is 320443324112.

211423344023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211423344023 - 2⁸ = 211423343767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211423344623) 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 as a sum of consecutive naturals, namely, 105711672011 + 105711672012.

It is an arithmetic number, because the mean of its divisors is an integer number (105711672012).

Almost surely, 2^211423344023 is an apocalyptic number.

211423344023 is a deficient number, since it is larger than the sum of its proper divisors (1).

211423344023 is an equidigital number, since it uses as much as digits as its factorization.

211423344023 is an odious number, because the sum of its binary digits is odd.

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

Adding to 211423344023 its reverse (320443324112), we get a palindrome (531866668135).

The spelling of 211423344023 in words is "two hundred eleven billion, four hundred twenty-three million, three hundred forty-four thousand, twenty-three".