12321121313211 has 8 divisors (see below), whose sum is σ = 16673358195264. Its totient is φ = 8091482653320.

The previous prime is 12321121313197. The next prime is 12321121313227. The reversal of 12321121313211 is 11231312112321.

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

It is a de Polignac number, because none of the positive numbers 2^k-12321121313211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12321121313311) 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 7 ways as a sum of consecutive naturals, for example, 30649555305 + ... + 30649555706.

It is an arithmetic number, because the mean of its divisors is an integer number (2084169774408).

Almost surely, 2^{12321121313211} is an apocalyptic number.

12321121313211 is a deficient number, since it is larger than the sum of its proper divisors (4352236882053).

12321121313211 is an equidigital number, since it uses as much as digits as its factorization.

12321121313211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61299111081.

The product of its digits is 432, while the sum is 24.

Adding to 12321121313211 its reverse (11231312112321), we get a palindrome (23552433425532).

The spelling of 12321121313211 in words is "twelve trillion, three hundred twenty-one billion, one hundred twenty-one million, three hundred thirteen thousand, two hundred eleven".