12404243223 has 12 divisors (see below), whose sum is σ = 18144041760. Its totient is φ = 8164817856.

The previous prime is 12404243219. The next prime is 12404243227. The reversal of 12404243223 is 32234240421.

12404243223 is a `hidden beast` number, since 12 + 4 + 0 + 424 + 3 + 223 = 666.

It is an interprime number because it is at equal distance from previous prime (12404243219) and next prime (12404243227).

It is not a de Polignac number, because 12404243223 - 2² = 12404243219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12404243227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8722386 + ... + 8723807.

It is an arithmetic number, because the mean of its divisors is an integer number (1512003480).

Almost surely, 2^12404243223 is an apocalyptic number.

12404243223 is a deficient number, since it is larger than the sum of its proper divisors (5739798537).

12404243223 is a wasteful number, since it uses less digits than its factorization.

12404243223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17446278 (or 17446275 counting only the distinct ones).

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

Adding to 12404243223 its reverse (32234240421), we get a palindrome (44638483644).

The spelling of 12404243223 in words is "twelve billion, four hundred four million, two hundred forty-three thousand, two hundred twenty-three".