12444442231 has 8 divisors (see below), whose sum is σ = 13402653264. Its totient is φ = 11486366400.

The previous prime is 12444442229. The next prime is 12444442277. The reversal of 12444442231 is 13224444421.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12444442231 - 2¹ = 12444442229 is a prime.

It is a super-2 number, since 2×12444442231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12444442193 and 12444442202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12444442291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238920 + ... + 286306.

It is an arithmetic number, because the mean of its divisors is an integer number (1675331658).

Almost surely, 2^12444442231 is an apocalyptic number.

12444442231 is a deficient number, since it is larger than the sum of its proper divisors (958211033).

12444442231 is a wasteful number, since it uses less digits than its factorization.

12444442231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67601.

The product of its digits is 24576, while the sum is 31.

Adding to 12444442231 its reverse (13224444421), we get a palindrome (25668886652).

The spelling of 12444442231 in words is "twelve billion, four hundred forty-four million, four hundred forty-two thousand, two hundred thirty-one".