12443343173 has 2 divisors, whose sum is σ = 12443343174. Its totient is φ = 12443343172.

The previous prime is 12443343169. The next prime is 12443343203. The reversal of 12443343173 is 37134334421.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12432696004 + 10647169 = 111502^2 + 3263^2 .

It is a cyclic number.

It is not a de Polignac number, because 12443343173 - 2² = 12443343169 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12443363173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6221671586 + 6221671587.

It is an arithmetic number, because the mean of its divisors is an integer number (6221671587).

Almost surely, 2^12443343173 is an apocalyptic number.

It is an amenable number.

12443343173 is a deficient number, since it is larger than the sum of its proper divisors (1).

12443343173 is an equidigital number, since it uses as much as digits as its factorization.

12443343173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 35.

Adding to 12443343173 its reverse (37134334421), we get a palindrome (49577677594).

The spelling of 12443343173 in words is "twelve billion, four hundred forty-three million, three hundred forty-three thousand, one hundred seventy-three".