12321013320647 has 2 divisors, whose sum is σ = 12321013320648. Its totient is φ = 12321013320646.

The previous prime is 12321013320611. The next prime is 12321013320829. The reversal of 12321013320647 is 74602331012321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12321013320647 - 2¹² = 12321013316551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12321013320347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160506660323 + 6160506660324.

It is an arithmetic number, because the mean of its divisors is an integer number (6160506660324).

Almost surely, 2^{12321013320647} is an apocalyptic number.

12321013320647 is a deficient number, since it is larger than the sum of its proper divisors (1).

12321013320647 is an equidigital number, since it uses as much as digits as its factorization.

12321013320647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 35.

Adding to 12321013320647 its reverse (74602331012321), we get a palindrome (86923344332968).

The spelling of 12321013320647 in words is "twelve trillion, three hundred twenty-one billion, thirteen million, three hundred twenty thousand, six hundred forty-seven".