12323220223 has 4 divisors (see below), whose sum is σ = 12720743488. Its totient is φ = 11925696960.

The previous prime is 12323220193. The next prime is 12323220263. The reversal of 12323220223 is 32202232321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32202232321 = 7 ⋅4600318903.

It is a cyclic number.

It is not a de Polignac number, because 12323220223 - 2²¹ = 12321123071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12323220194 and 12323220203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12323220263) 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, 198761586 + ... + 198761647.

It is an arithmetic number, because the mean of its divisors is an integer number (3180185872).

Almost surely, 2^12323220223 is an apocalyptic number.

12323220223 is a deficient number, since it is larger than the sum of its proper divisors (397523265).

12323220223 is an equidigital number, since it uses as much as digits as its factorization.

12323220223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397523264.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 12323220223 its reverse (32202232321), we get a palindrome (44525452544).

The spelling of 12323220223 in words is "twelve billion, three hundred twenty-three million, two hundred twenty thousand, two hundred twenty-three".