12443240053 has 2 divisors, whose sum is σ = 12443240054. Its totient is φ = 12443240052.

The previous prime is 12443240021. The next prime is 12443240059. The reversal of 12443240053 is 35004234421.

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., 10217570724 + 2225669329 = 101082^2 + 47177^2 .

It is a cyclic number.

It is not a de Polignac number, because 12443240053 - 2⁵ = 12443240021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12443240059) 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, 6221620026 + 6221620027.

It is an arithmetic number, because the mean of its divisors is an integer number (6221620027).

Almost surely, 2^12443240053 is an apocalyptic number.

It is an amenable number.

12443240053 is a deficient number, since it is larger than the sum of its proper divisors (1).

12443240053 is an equidigital number, since it uses as much as digits as its factorization.

12443240053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 12443240053 its reverse (35004234421), we get a palindrome (47447474474).

The spelling of 12443240053 in words is "twelve billion, four hundred forty-three million, two hundred forty thousand, fifty-three".