12123023222111 has 2 divisors, whose sum is σ = 12123023222112. Its totient is φ = 12123023222110.

The previous prime is 12123023222069. The next prime is 12123023222113. The reversal of 12123023222111 is 11122232032121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12123023222111 - 2¹⁰ = 12123023221087 is a prime.

Together with 12123023222113, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12123023222113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061511611055 + 6061511611056.

It is an arithmetic number, because the mean of its divisors is an integer number (6061511611056).

Almost surely, 2^{12123023222111} is an apocalyptic number.

12123023222111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12123023222111 is an equidigital number, since it uses as much as digits as its factorization.

12123023222111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 12123023222111 its reverse (11122232032121), we get a palindrome (23245255254232).

The spelling of 12123023222111 in words is "twelve trillion, one hundred twenty-three billion, twenty-three million, two hundred twenty-two thousand, one hundred eleven".