12321133213 has 2 divisors, whose sum is σ = 12321133214. Its totient is φ = 12321133212.

The previous prime is 12321133199. The next prime is 12321133217. The reversal of 12321133213 is 31233112321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10024615129 + 2296518084 = 100123^2 + 47922^2 .

It is an emirp because it is prime and its reverse (31233112321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12321133213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12321133217) 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, 6160566606 + 6160566607.

It is an arithmetic number, because the mean of its divisors is an integer number (6160566607).

Almost surely, 2^12321133213 is an apocalyptic number.

It is an amenable number.

12321133213 is a deficient number, since it is larger than the sum of its proper divisors (1).

12321133213 is an equidigital number, since it uses as much as digits as its factorization.

12321133213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 22.

Adding to 12321133213 its reverse (31233112321), we get a palindrome (43554245534).

The spelling of 12321133213 in words is "twelve billion, three hundred twenty-one million, one hundred thirty-three thousand, two hundred thirteen".