12013142321 has 2 divisors, whose sum is σ = 12013142322. Its totient is φ = 12013142320.

The previous prime is 12013142269. The next prime is 12013142353. The reversal of 12013142321 is 12324131021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8906640625 + 3106501696 = 94375^2 + 55736^2 .

It is a cyclic number.

It is not a de Polignac number, because 12013142321 - 2¹⁸ = 12012880177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12013142293 and 12013142302.

It is not a weakly prime, because it can be changed into another prime (12013142221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006571160 + 6006571161.

It is an arithmetic number, because the mean of its divisors is an integer number (6006571161).

Almost surely, 2^12013142321 is an apocalyptic number.

It is an amenable number.

12013142321 is a deficient number, since it is larger than the sum of its proper divisors (1).

12013142321 is an equidigital number, since it uses as much as digits as its factorization.

12013142321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12013142321 its reverse (12324131021), we get a palindrome (24337273342).

The spelling of 12013142321 in words is "twelve billion, thirteen million, one hundred forty-two thousand, three hundred twenty-one".