12321311231223 has 6 divisors (see below), whose sum is σ = 17797449556224. Its totient is φ = 8214207487476.

The previous prime is 12321311231209. The next prime is 12321311231239. The reversal of 12321311231223 is 32213211312321.

12321311231223 is a `hidden beast` number, since 1 + 2 + 3 + 213 + 112 + 312 + 23 = 666.

It is not a de Polignac number, because 12321311231223 - 2²⁹ = 12320774360311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321311231023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 684517290615 + ... + 684517290632.

It is an arithmetic number, because the mean of its divisors is an integer number (2966241592704).

Almost surely, 2^{12321311231223} is an apocalyptic number.

12321311231223 is a deficient number, since it is larger than the sum of its proper divisors (5476138325001).

12321311231223 is a wasteful number, since it uses less digits than its factorization.

12321311231223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369034581253 (or 1369034581250 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

Adding to 12321311231223 its reverse (32213211312321), we get a palindrome (44534522543544).

The spelling of 12321311231223 in words is "twelve trillion, three hundred twenty-one billion, three hundred eleven million, two hundred thirty-one thousand, two hundred twenty-three".