12440444323 has 2 divisors, whose sum is σ = 12440444324. Its totient is φ = 12440444322.

The previous prime is 12440444321. The next prime is 12440444327. The reversal of 12440444323 is 32344404421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12440444323 - 2¹ = 12440444321 is a prime.

Together with 12440444321, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12440444321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6220222161 + 6220222162.

It is an arithmetic number, because the mean of its divisors is an integer number (6220222162).

Almost surely, 2^12440444323 is an apocalyptic number.

12440444323 is a deficient number, since it is larger than the sum of its proper divisors (1).

12440444323 is an equidigital number, since it uses as much as digits as its factorization.

12440444323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 12440444323 its reverse (32344404421), we get a palindrome (44784848744).

The spelling of 12440444323 in words is "twelve billion, four hundred forty million, four hundred forty-four thousand, three hundred twenty-three".