12123321323 has 8 divisors (see below), whose sum is σ = 12155194800. Its totient is φ = 12091488640.

The previous prime is 12123321263. The next prime is 12123321341. The reversal of 12123321323 is 32312332121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12123321323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12123321823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637868 + ... + 656598.

It is an arithmetic number, because the mean of its divisors is an integer number (1519399350).

Almost surely, 2^12123321323 is an apocalyptic number.

12123321323 is a deficient number, since it is larger than the sum of its proper divisors (31873477).

12123321323 is a wasteful number, since it uses less digits than its factorization.

12123321323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20397.

The product of its digits is 1296, while the sum is 23.

Adding to 12123321323 its reverse (32312332121), we get a palindrome (44435653444).

The spelling of 12123321323 in words is "twelve billion, one hundred twenty-three million, three hundred twenty-one thousand, three hundred twenty-three".