12444424011 has 32 divisors (see below), whose sum is σ = 18766606400. Its totient is φ = 8148003840.

The previous prime is 12444423989. The next prime is 12444424061. The reversal of 12444424011 is 11042444421.

It is a happy number.

It is not a de Polignac number, because 12444424011 - 2⁹ = 12444423499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12444424061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1162395 + ... + 1173051.

It is an arithmetic number, because the mean of its divisors is an integer number (586456450).

Almost surely, 2^12444424011 is an apocalyptic number.

12444424011 is a deficient number, since it is larger than the sum of its proper divisors (6322182389).

12444424011 is a wasteful number, since it uses less digits than its factorization.

12444424011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11436 (or 11430 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 12444424011 its reverse (11042444421), we get a palindrome (23486868432).

The spelling of 12444424011 in words is "twelve billion, four hundred forty-four million, four hundred twenty-four thousand, eleven".