1313303 has 4 divisors (see below), whose sum is σ = 1326408.
Its totient is φ = 1300200.
The previous prime is 1313297. The next prime is 1313311. The reversal of 1313303 is 3033131.
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 1313303 - 26 = 1313239 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 (1313363) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6401 + ... + 6602.
It is an arithmetic number, because the mean of its divisors is an integer number (331602).
21313303 is an apocalyptic number.
1313303 is a deficient number, since it is larger than the sum of its proper divisors (13105).
1313303 is a wasteful number, since it uses less digits than its factorization.
1313303 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13104.
The product of its (nonzero) digits is 81, while the sum is 14.
The square root of 1313303 is about 1145.9943280837.
The cubic root of 1313303 is about 109.5103025411.
Adding to 1313303 its reverse (3033131), we get a palindrome (4346434).
The spelling of 1313303 in words is "one million, three hundred thirteen thousand, three hundred three".