12321314121 has 16 divisors (see below), whose sum is σ = 16488378368. Its totient is φ = 8184272400.

The previous prime is 12321314119. The next prime is 12321314149. The reversal of 12321314121 is 12141312321.

12321314121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12321314121 - 2¹ = 12321314119 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12321314101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1350786 + ... + 1359876.

It is an arithmetic number, because the mean of its divisors is an integer number (1030523648).

Almost surely, 2^12321314121 is an apocalyptic number.

It is an amenable number.

12321314121 is a deficient number, since it is larger than the sum of its proper divisors (4167064247).

12321314121 is a wasteful number, since it uses less digits than its factorization.

12321314121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10692.

The product of its digits is 288, while the sum is 21.

Adding to 12321314121 its reverse (12141312321), we get a palindrome (24462626442).

The spelling of 12321314121 in words is "twelve billion, three hundred twenty-one million, three hundred fourteen thousand, one hundred twenty-one".