12123404244311 has 2 divisors, whose sum is σ = 12123404244312. Its totient is φ = 12123404244310.

The previous prime is 12123404244247. The next prime is 12123404244317. The reversal of 12123404244311 is 11344240432121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12123404244311 - 2⁶ = 12123404244247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12123404244317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061702122155 + 6061702122156.

It is an arithmetic number, because the mean of its divisors is an integer number (6061702122156).

Almost surely, 2^{12123404244311} is an apocalyptic number.

12123404244311 is a deficient number, since it is larger than the sum of its proper divisors (1).

12123404244311 is an equidigital number, since it uses as much as digits as its factorization.

12123404244311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 12123404244311 its reverse (11344240432121), we get a palindrome (23467644676432).

The spelling of 12123404244311 in words is "twelve trillion, one hundred twenty-three billion, four hundred four million, two hundred forty-four thousand, three hundred eleven".