12371321 has 8 divisors (see below), whose sum is σ = 12624000. Its totient is φ = 12121200.

The previous prime is 12371311. The next prime is 12371323. The reversal of 12371321 is 12317321.

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

It is a cyclic number.

It is not a de Polignac number, because 12371321 - 2¹⁸ = 12109177 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 12371293 and 12371302.

It is not an unprimeable number, because it can be changed into a prime (12371323) 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, 11246 + ... + 12296.

It is an arithmetic number, because the mean of its divisors is an integer number (1578000).

Almost surely, 2^12371321 is an apocalyptic number.

It is an amenable number.

12371321 is a deficient number, since it is larger than the sum of its proper divisors (252679).

12371321 is a wasteful number, since it uses less digits than its factorization.

12371321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279.

The product of its digits is 252, while the sum is 20.

The square root of 12371321 is about 3517.2888707071. The cubic root of 12371321 is about 231.2803265803.

Adding to 12371321 its reverse (12317321), we get a palindrome (24688642).

The spelling of 12371321 in words is "twelve million, three hundred seventy-one thousand, three hundred twenty-one".