12320404223 has 4 divisors (see below), whose sum is σ = 12321018480. Its totient is φ = 12319789968.

The previous prime is 12320404219. The next prime is 12320404259. The reversal of 12320404223 is 32240402321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32240402321 = 3881 ⋅8307241.

It is a cyclic number.

It is not a de Polignac number, because 12320404223 - 2² = 12320404219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12320464223) 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 3 ways as a sum of consecutive naturals, for example, 275990 + ... + 317507.

It is an arithmetic number, because the mean of its divisors is an integer number (3080254620).

Almost surely, 2^12320404223 is an apocalyptic number.

12320404223 is a deficient number, since it is larger than the sum of its proper divisors (614257).

12320404223 is an equidigital number, since it uses as much as digits as its factorization.

12320404223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614256.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 12320404223 its reverse (32240402321), we get a palindrome (44560806544).

The spelling of 12320404223 in words is "twelve billion, three hundred twenty million, four hundred four thousand, two hundred twenty-three".