12005023223 has 4 divisors (see below), whose sum is σ = 12021268920. Its totient is φ = 11988777528.

The previous prime is 12005023207. The next prime is 12005023237. The reversal of 12005023223 is 32232050021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32232050021 = 56081 ⋅574741.

It is a cyclic number.

It is not a de Polignac number, because 12005023223 - 2⁴ = 12005023207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12005023195 and 12005023204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12005023273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8121740 + ... + 8123217.

It is an arithmetic number, because the mean of its divisors is an integer number (3005317230).

Almost surely, 2^12005023223 is an apocalyptic number.

12005023223 is a deficient number, since it is larger than the sum of its proper divisors (16245697).

12005023223 is an equidigital number, since it uses as much as digits as its factorization.

12005023223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16245696.

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 12005023223 its reverse (32232050021), we get a palindrome (44237073244).

The spelling of 12005023223 in words is "twelve billion, five million, twenty-three thousand, two hundred twenty-three".