13221303001 has 2 divisors, whose sum is σ = 13221303002. Its totient is φ = 13221303000.

The previous prime is 13221302999. The next prime is 13221303023. The reversal of 13221303001 is 10030312231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13179040000 + 42263001 = 114800^2 + 6501^2 .

It is a cyclic number.

It is not a de Polignac number, because 13221303001 - 2¹ = 13221302999 is a prime.

It is a super-3 number, since 3×13221303001³ (a number of 31 digits) contains 333 as substring.

Together with 13221302999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13221303031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610651500 + 6610651501.

It is an arithmetic number, because the mean of its divisors is an integer number (6610651501).

Almost surely, 2^13221303001 is an apocalyptic number.

It is an amenable number.

13221303001 is a deficient number, since it is larger than the sum of its proper divisors (1).

13221303001 is an equidigital number, since it uses as much as digits as its factorization.

13221303001 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 16.

Adding to 13221303001 its reverse (10030312231), we get a palindrome (23251615232).

The spelling of 13221303001 in words is "thirteen billion, two hundred twenty-one million, three hundred three thousand, one".