12443044115 has 4 divisors (see below), whose sum is σ = 14931652944. Its totient is φ = 9954435288.

The previous prime is 12443044111. The next prime is 12443044139. The reversal of 12443044115 is 51144034421.

12443044115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12443044115 - 2² = 12443044111 is a prime.

It is a super-2 number, since 2×12443044115² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12443044111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1244304407 + ... + 1244304416.

It is an arithmetic number, because the mean of its divisors is an integer number (3732913236).

Almost surely, 2^12443044115 is an apocalyptic number.

12443044115 is a deficient number, since it is larger than the sum of its proper divisors (2488608829).

12443044115 is an equidigital number, since it uses as much as digits as its factorization.

12443044115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2488608828.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 12443044115 its reverse (51144034421), we get a palindrome (63587078536).

The spelling of 12443044115 in words is "twelve billion, four hundred forty-three million, forty-four thousand, one hundred fifteen".