12001323311 has 2 divisors, whose sum is σ = 12001323312. Its totient is φ = 12001323310.

The previous prime is 12001323307. The next prime is 12001323317. The reversal of 12001323311 is 11332310021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12001323311 - 2² = 12001323307 is a prime.

It is a super-2 number, since 2×12001323311² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12001323311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12001323317) 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, 6000661655 + 6000661656.

It is an arithmetic number, because the mean of its divisors is an integer number (6000661656).

Almost surely, 2^12001323311 is an apocalyptic number.

12001323311 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001323311 is an equidigital number, since it uses as much as digits as its factorization.

12001323311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12001323311 its reverse (11332310021), we get a palindrome (23333633332).

The spelling of 12001323311 in words is "twelve billion, one million, three hundred twenty-three thousand, three hundred eleven".