13303243 has 2 divisors, whose sum is σ = 13303244. Its totient is φ = 13303242.

The previous prime is 13303237. The next prime is 13303253. The reversal of 13303243 is 34230331.

It is a weak prime.

It is an emirp because it is prime and its reverse (34230331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13303243 - 2¹⁷ = 13172171 is a prime.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 13303243.

It is not a weakly prime, because it can be changed into another prime (13303253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6651621 + 6651622.

It is an arithmetic number, because the mean of its divisors is an integer number (6651622).

Almost surely, 2^13303243 is an apocalyptic number.

13303243 is a deficient number, since it is larger than the sum of its proper divisors (1).

13303243 is an equidigital number, since it uses as much as digits as its factorization.

13303243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 13303243 is about 3647.3611008509. The cubic root of 13303243 is about 236.9477057676.

Adding to 13303243 its reverse (34230331), we get a palindrome (47533574).

The spelling of 13303243 in words is "thirteen million, three hundred three thousand, two hundred forty-three".