1303343 has 4 divisors (see below), whose sum is σ = 1371960. Its totient is φ = 1234728.

The previous prime is 1303331. The next prime is 1303363. The reversal of 1303343 is 3433031.

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

It is a cyclic number.

It is not a de Polignac number, because 1303343 - 2⁴ = 1303327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303363) 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, 34280 + ... + 34317.

It is an arithmetic number, because the mean of its divisors is an integer number (342990).

2^1303343 is an apocalyptic number.

1303343 is a deficient number, since it is larger than the sum of its proper divisors (68617).

1303343 is an equidigital number, since it uses as much as digits as its factorization.

1303343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68616.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 1303343 is about 1141.6404863178. The cubic root of 1303343 is about 109.2327601888.

Adding to 1303343 its reverse (3433031), we get a palindrome (4736374).

The spelling of 1303343 in words is "one million, three hundred three thousand, three hundred forty-three".