12013430212321 has 2 divisors, whose sum is σ = 12013430212322. Its totient is φ = 12013430212320.

The previous prime is 12013430212309. The next prime is 12013430212387. The reversal of 12013430212321 is 12321203431021.

12013430212321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11935912515921 + 77517696400 = 3454839^2 + 278420^2 .

It is a cyclic number.

It is not a de Polignac number, because 12013430212321 - 2¹⁷ = 12013430081249 is a prime.

It is not a weakly prime, because it can be changed into another prime (12013430212391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006715106160 + 6006715106161.

It is an arithmetic number, because the mean of its divisors is an integer number (6006715106161).

Almost surely, 2^{12013430212321} is an apocalyptic number.

It is an amenable number.

12013430212321 is a deficient number, since it is larger than the sum of its proper divisors (1).

12013430212321 is an equidigital number, since it uses as much as digits as its factorization.

12013430212321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 12013430212321 its reverse (12321203431021), we get a palindrome (24334633643342).

The spelling of 12013430212321 in words is "twelve trillion, thirteen billion, four hundred thirty million, two hundred twelve thousand, three hundred twenty-one".