211223022323 has 2 divisors, whose sum is σ = 211223022324. Its totient is φ = 211223022322.

The previous prime is 211223022319. The next prime is 211223022331. The reversal of 211223022323 is 323220322112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211223022323 - 2² = 211223022319 is a prime.

It is not a weakly prime, because it can be changed into another prime (211223022313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105611511161 + 105611511162.

It is an arithmetic number, because the mean of its divisors is an integer number (105611511162).

Almost surely, 2^211223022323 is an apocalyptic number.

211223022323 is a deficient number, since it is larger than the sum of its proper divisors (1).

211223022323 is an equidigital number, since it uses as much as digits as its factorization.

211223022323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 211223022323 its reverse (323220322112), we get a palindrome (534443344435).

The spelling of 211223022323 in words is "two hundred eleven billion, two hundred twenty-three million, twenty-two thousand, three hundred twenty-three".