12123303223 has 4 divisors (see below), whose sum is σ = 12124014760. Its totient is φ = 12122591688.

The previous prime is 12123303217. The next prime is 12123303233. The reversal of 12123303223 is 32230332121.

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

It is a cyclic number.

It is not a de Polignac number, because 12123303223 - 2²⁵ = 12089748791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12123303194 and 12123303203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123303233) 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, 329568 + ... + 364501.

It is an arithmetic number, because the mean of its divisors is an integer number (3031003690).

Almost surely, 2^12123303223 is an apocalyptic number.

12123303223 is a deficient number, since it is larger than the sum of its proper divisors (711537).

12123303223 is an equidigital number, since it uses as much as digits as its factorization.

12123303223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711536.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 12123303223 its reverse (32230332121), we get a palindrome (44353635344).

The spelling of 12123303223 in words is "twelve billion, one hundred twenty-three million, three hundred three thousand, two hundred twenty-three".