12444413042 has 4 divisors (see below), whose sum is σ = 18666619566. Its totient is φ = 6222206520.

The previous prime is 12444413041. The next prime is 12444413063. The reversal of 12444413042 is 24031444421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24031444421 = 79 ⋅304195499.

It can be written as a sum of positive squares in only one way, i.e., 9688268041 + 2756145001 = 98429^2 + 52499^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12444412996 and 12444413014.

It is not an unprimeable number, because it can be changed into a prime (12444413041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3111103259 + ... + 3111103262.

Almost surely, 2^12444413042 is an apocalyptic number.

12444413042 is a deficient number, since it is larger than the sum of its proper divisors (6222206524).

12444413042 is an equidigital number, since it uses as much as digits as its factorization.

12444413042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6222206523.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 12444413042 its reverse (24031444421), we get a palindrome (36475857463).

The spelling of 12444413042 in words is "twelve billion, four hundred forty-four million, four hundred thirteen thousand, forty-two".