12244320423 has 32 divisors (see below), whose sum is σ = 19610553600. Its totient is φ = 7524236448.

The previous prime is 12244320421. The next prime is 12244320437. The reversal of 12244320423 is 32402344221.

12244320423 is a `hidden beast` number, since 1 + 224 + 432 + 0 + 4 + 2 + 3 = 666.

It is not a de Polignac number, because 12244320423 - 2¹ = 12244320421 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12244320421) 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, 303561 + ... + 341522.

It is an arithmetic number, because the mean of its divisors is an integer number (612829800).

Almost surely, 2^12244320423 is an apocalyptic number.

12244320423 is a deficient number, since it is larger than the sum of its proper divisors (7366233177).

12244320423 is a wasteful number, since it uses less digits than its factorization.

12244320423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645148 (or 645142 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 12244320423 its reverse (32402344221), we get a palindrome (44646664644).

The spelling of 12244320423 in words is "twelve billion, two hundred forty-four million, three hundred twenty thousand, four hundred twenty-three".