12424340223 has 16 divisors (see below), whose sum is σ = 18903902560. Its totient is φ = 8059030848.

The previous prime is 12424340221. The next prime is 12424340233. The reversal of 12424340223 is 32204342421.

12424340223 is a `hidden beast` number, since 1 + 2 + 4 + 2 + 434 + 0 + 223 = 666.

It is not a de Polignac number, because 12424340223 - 2¹ = 12424340221 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12424340221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6217390 + ... + 6219387.

It is an arithmetic number, because the mean of its divisors is an integer number (1181493910).

Almost surely, 2^12424340223 is an apocalyptic number.

12424340223 is a deficient number, since it is larger than the sum of its proper divisors (6479562337).

12424340223 is a wasteful number, since it uses less digits than its factorization.

12424340223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12436823 (or 12436817 counting only the distinct ones).

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

Adding to 12424340223 its reverse (32204342421), we get a palindrome (44628682644).

The spelling of 12424340223 in words is "twelve billion, four hundred twenty-four million, three hundred forty thousand, two hundred twenty-three".