12266236823 has 2 divisors, whose sum is σ = 12266236824. Its totient is φ = 12266236822.

The previous prime is 12266236817. The next prime is 12266236849. The reversal of 12266236823 is 32863266221.

It is a weak prime.

It is an emirp because it is prime and its reverse (32863266221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12266236823 is a prime.

It is a super-2 number, since 2×12266236823² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12266236523) 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, 6133118411 + 6133118412.

It is an arithmetic number, because the mean of its divisors is an integer number (6133118412).

Almost surely, 2^12266236823 is an apocalyptic number.

12266236823 is a deficient number, since it is larger than the sum of its proper divisors (1).

12266236823 is an equidigital number, since it uses as much as digits as its factorization.

12266236823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 41.

The spelling of 12266236823 in words is "twelve billion, two hundred sixty-six million, two hundred thirty-six thousand, eight hundred twenty-three".