1313303303 has 8 divisors (see below), whose sum is σ = 1428331296. Its totient is φ = 1200276000.

The previous prime is 1313303297. The next prime is 1313303311. The reversal of 1313303303 is 3033033131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1313303303 - 2⁴ = 1313303287 is a prime.

It is a Duffinian number.

1313303303 is a modest number, since divided by 303303 gives 1313 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313306303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498803 + ... + 501428.

It is an arithmetic number, because the mean of its divisors is an integer number (178541412).

Almost surely, 2^1313303303 is an apocalyptic number.

1313303303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1313303303 is a deficient number, since it is larger than the sum of its proper divisors (115027993).

1313303303 is a wasteful number, since it uses less digits than its factorization.

1313303303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000345.

The product of its (nonzero) digits is 729, while the sum is 20.

The square root of 1313303303 is about 36239.5268043058. The cubic root of 1313303303 is about 1095.1031096305.

Adding to 1313303303 its reverse (3033033131), we get a palindrome (4346336434).

The spelling of 1313303303 in words is "one billion, three hundred thirteen million, three hundred three thousand, three hundred three".