12320656434473 has 2 divisors, whose sum is σ = 12320656434474. Its totient is φ = 12320656434472.

The previous prime is 12320656434349. The next prime is 12320656434497. The reversal of 12320656434473 is 37443465602321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9178942724329 + 3141713710144 = 3029677^2 + 1772488^2 .

It is an emirp because it is prime and its reverse (37443465602321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12320656434473 - 2¹⁴ = 12320656418089 is a prime.

It is not a weakly prime, because it can be changed into another prime (12320656434773) 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, 6160328217236 + 6160328217237.

It is an arithmetic number, because the mean of its divisors is an integer number (6160328217237).

Almost surely, 2^{12320656434473} is an apocalyptic number.

It is an amenable number.

12320656434473 is a deficient number, since it is larger than the sum of its proper divisors (1).

12320656434473 is an equidigital number, since it uses as much as digits as its factorization.

12320656434473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8709120, while the sum is 50.

The spelling of 12320656434473 in words is "twelve trillion, three hundred twenty billion, six hundred fifty-six million, four hundred thirty-four thousand, four hundred seventy-three".