13213211444243 has 2 divisors, whose sum is σ = 13213211444244. Its totient is φ = 13213211444242.

The previous prime is 13213211444239. The next prime is 13213211444249. The reversal of 13213211444243 is 34244411231231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13213211444243 - 2² = 13213211444239 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (13213211444249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6606605722121 + 6606605722122.

It is an arithmetic number, because the mean of its divisors is an integer number (6606605722122).

Almost surely, 2^{13213211444243} is an apocalyptic number.

13213211444243 is a deficient number, since it is larger than the sum of its proper divisors (1).

13213211444243 is an equidigital number, since it uses as much as digits as its factorization.

13213211444243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 35.

Adding to 13213211444243 its reverse (34244411231231), we get a palindrome (47457622675474).

The spelling of 13213211444243 in words is "thirteen trillion, two hundred thirteen billion, two hundred eleven million, four hundred forty-four thousand, two hundred forty-three".