13320001 has 2 divisors, whose sum is σ = 13320002. Its totient is φ = 13320000.

The previous prime is 13319989. The next prime is 13320011. The reversal of 13320001 is 10002331.

It is an a-pointer prime, because the next prime (13320011) can be obtained adding 13320001 to its sum of digits (10).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11937025 + 1382976 = 3455^2 + 1176^2 .

It is an emirp because it is prime and its reverse (10002331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13320001 - 2¹⁵ = 13287233 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13320001.

It is not a weakly prime, because it can be changed into another prime (13320011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6660000 + 6660001.

It is an arithmetic number, because the mean of its divisors is an integer number (6660001).

Almost surely, 2^13320001 is an apocalyptic number.

It is an amenable number.

13320001 is a deficient number, since it is larger than the sum of its proper divisors (1).

13320001 is an equidigital number, since it uses as much as digits as its factorization.

13320001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 13320001 is about 3649.6576551781. The cubic root of 13320001 is about 237.0471577960.

Adding to 13320001 its reverse (10002331), we get a palindrome (23322332).

The spelling of 13320001 in words is "thirteen million, three hundred twenty thousand, one".