12320224013 has 2 divisors, whose sum is σ = 12320224014. Its totient is φ = 12320224012.

The previous prime is 12320224009. The next prime is 12320224057. The reversal of 12320224013 is 31042202321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11666808169 + 653415844 = 108013^2 + 25562^2 .

It is a cyclic number.

It is not a de Polignac number, because 12320224013 - 2² = 12320224009 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12320220013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160112006 + 6160112007.

It is an arithmetic number, because the mean of its divisors is an integer number (6160112007).

Almost surely, 2^12320224013 is an apocalyptic number.

It is an amenable number.

12320224013 is a deficient number, since it is larger than the sum of its proper divisors (1).

12320224013 is an equidigital number, since it uses as much as digits as its factorization.

12320224013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12320224013 its reverse (31042202321), we get a palindrome (43362426334).

The spelling of 12320224013 in words is "twelve billion, three hundred twenty million, two hundred twenty-four thousand, thirteen".