13303313 has 4 divisors (see below), whose sum is σ = 13662900. Its totient is φ = 12943728.

The previous prime is 13303289. The next prime is 13303321. The reversal of 13303313 is 31330331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11785489 + 1517824 = 3433^2 + 1232^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13303313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13303291 and 13303300.

It is not an unprimeable number, because it can be changed into a prime (13303343) 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 in 3 ways as a sum of consecutive naturals, for example, 179738 + ... + 179811.

It is an arithmetic number, because the mean of its divisors is an integer number (3415725).

Almost surely, 2^13303313 is an apocalyptic number.

It is an amenable number.

13303313 is a deficient number, since it is larger than the sum of its proper divisors (359587).

13303313 is an equidigital number, since it uses as much as digits as its factorization.

13303313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359586.

The product of its (nonzero) digits is 243, while the sum is 17.

The square root of 13303313 is about 3647.3706968171. The cubic root of 13303313 is about 236.9481213633.

Adding to 13303313 its reverse (31330331), we get a palindrome (44633644).

It can be divided in two parts, 1330331 and 3, that multiplied together give a palindrome (3990993).

The spelling of 13303313 in words is "thirteen million, three hundred three thousand, three hundred thirteen".