12340223111 has 2 divisors, whose sum is σ = 12340223112. Its totient is φ = 12340223110.

The previous prime is 12340223107. The next prime is 12340223131. The reversal of 12340223111 is 11132204321.

It is an a-pointer prime, because the next prime (12340223131) can be obtained adding 12340223111 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12340223111 - 2² = 12340223107 is a prime.

It is a super-2 number, since 2×12340223111² (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 (12340223101) 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, 6170111555 + 6170111556.

It is an arithmetic number, because the mean of its divisors is an integer number (6170111556).

Almost surely, 2^12340223111 is an apocalyptic number.

12340223111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12340223111 is an equidigital number, since it uses as much as digits as its factorization.

12340223111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12340223111 its reverse (11132204321), we get a palindrome (23472427432).

The spelling of 12340223111 in words is "twelve billion, three hundred forty million, two hundred twenty-three thousand, one hundred eleven".