13201000321 has 2 divisors, whose sum is σ = 13201000322. Its totient is φ = 13201000320.

The previous prime is 13201000279. The next prime is 13201000343. The reversal of 13201000321 is 12300010231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12629264400 + 571735921 = 112380^2 + 23911^2 .

It is an emirp because it is prime and its reverse (12300010231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13201000321 - 2¹⁷ = 13200869249 is a prime.

It is not a weakly prime, because it can be changed into another prime (13201000381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6600500160 + 6600500161.

It is an arithmetic number, because the mean of its divisors is an integer number (6600500161).

Almost surely, 2^13201000321 is an apocalyptic number.

It is an amenable number.

13201000321 is a deficient number, since it is larger than the sum of its proper divisors (1).

13201000321 is an equidigital number, since it uses as much as digits as its factorization.

13201000321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 13201000321 its reverse (12300010231), we get a palindrome (25501010552).

The spelling of 13201000321 in words is "thirteen billion, two hundred one million, three hundred twenty-one", and thus it is an aban number.