13321100321 has 2 divisors, whose sum is σ = 13321100322. Its totient is φ = 13321100320.

The previous prime is 13321100267. The next prime is 13321100341. The reversal of 13321100321 is 12300112331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10387686400 + 2933413921 = 101920^2 + 54161^2 .

It is a cyclic number.

It is not a de Polignac number, because 13321100321 - 2¹⁸ = 13320838177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13321100321.

It is not a weakly prime, because it can be changed into another prime (13321100341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6660550160 + 6660550161.

It is an arithmetic number, because the mean of its divisors is an integer number (6660550161).

Almost surely, 2^13321100321 is an apocalyptic number.

It is an amenable number.

13321100321 is a deficient number, since it is larger than the sum of its proper divisors (1).

13321100321 is an equidigital number, since it uses as much as digits as its factorization.

13321100321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 13321100321 its reverse (12300112331), we get a palindrome (25621212652).

The spelling of 13321100321 in words is "thirteen billion, three hundred twenty-one million, one hundred thousand, three hundred twenty-one".