12444110138 has 8 divisors (see below), whose sum is σ = 18669374100. Its totient is φ = 6220985440.

The previous prime is 12444110131. The next prime is 12444110149. The reversal of 12444110138 is 83101144421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12304799329 + 139310809 = 110927^2 + 11803^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12444110138.

It is not an unprimeable number, because it can be changed into a prime (12444110131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520193 + ... + 543588.

Almost surely, 2^12444110138 is an apocalyptic number.

12444110138 is a deficient number, since it is larger than the sum of its proper divisors (6225263962).

12444110138 is a wasteful number, since it uses less digits than its factorization.

12444110138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069632.

The product of its (nonzero) digits is 3072, while the sum is 29.

Adding to 12444110138 its reverse (83101144421), we get a palindrome (95545254559).

The spelling of 12444110138 in words is "twelve billion, four hundred forty-four million, one hundred ten thousand, one hundred thirty-eight".