13303213321 has 2 divisors, whose sum is σ = 13303213322. Its totient is φ = 13303213320.

The previous prime is 13303213309. The next prime is 13303213349. The reversal of 13303213321 is 12331230331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9037164096 + 4266049225 = 95064^2 + 65315^2 .

It is a cyclic number.

It is not a de Polignac number, because 13303213321 - 2¹⁷ = 13303082249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13303213292 and 13303213301.

It is not a weakly prime, because it can be changed into another prime (13303213381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6651606660 + 6651606661.

It is an arithmetic number, because the mean of its divisors is an integer number (6651606661).

Almost surely, 2^13303213321 is an apocalyptic number.

It is an amenable number.

13303213321 is a deficient number, since it is larger than the sum of its proper divisors (1).

13303213321 is an equidigital number, since it uses as much as digits as its factorization.

13303213321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 13303213321 its reverse (12331230331), we get a palindrome (25634443652).

The spelling of 13303213321 in words is "thirteen billion, three hundred three million, two hundred thirteen thousand, three hundred twenty-one".