12330121321 has 24 divisors (see below), whose sum is σ = 14532777000. Its totient is φ = 10429461504.

The previous prime is 12330121303. The next prime is 12330121337. The reversal of 12330121321 is 12312103321.

It can be written as a sum of positive squares in 4 ways, for example, as 167340096 + 12162781225 = 12936^2 + 110285^2 .

It is not a de Polignac number, because 12330121321 - 2⁹ = 12330120809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12330121361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2478925 + ... + 2483893.

It is an arithmetic number, because the mean of its divisors is an integer number (605532375).

Almost surely, 2^12330121321 is an apocalyptic number.

It is an amenable number.

12330121321 is a deficient number, since it is larger than the sum of its proper divisors (2202655679).

12330121321 is an equidigital number, since it uses as much as digits as its factorization.

12330121321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5641 (or 5634 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12330121321 its reverse (12312103321), we get a palindrome (24642224642).

The spelling of 12330121321 in words is "twelve billion, three hundred thirty million, one hundred twenty-one thousand, three hundred twenty-one".