12032312223 has 4 divisors (see below), whose sum is σ = 16043082968. Its totient is φ = 8021541480.

The previous prime is 12032312179. The next prime is 12032312233. The reversal of 12032312223 is 32221323021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-12032312223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12032312223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12032312233) 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 3 ways as a sum of consecutive naturals, for example, 2005385368 + ... + 2005385373.

It is an arithmetic number, because the mean of its divisors is an integer number (4010770742).

Almost surely, 2^12032312223 is an apocalyptic number.

12032312223 is a deficient number, since it is larger than the sum of its proper divisors (4010770745).

12032312223 is an equidigital number, since it uses as much as digits as its factorization.

12032312223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4010770744.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12032312223 its reverse (32221323021), we get a palindrome (44253635244).

The spelling of 12032312223 in words is "twelve billion, thirty-two million, three hundred twelve thousand, two hundred twenty-three".