1313103303 has 24 divisors (see below), whose sum is σ = 1913799888. Its totient is φ = 867549312.

The previous prime is 1313103299. The next prime is 1313103317. The reversal of 1313103303 is 3033013131.

It is not a de Polignac number, because 1313103303 - 2² = 1313103299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313103353) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 500451 + ... + 503067.

It is an arithmetic number, because the mean of its divisors is an integer number (79741662).

Almost surely, 2^1313103303 is an apocalyptic number.

1313103303 is a deficient number, since it is larger than the sum of its proper divisors (600696585).

1313103303 is a wasteful number, since it uses less digits than its factorization.

1313103303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3103 (or 3100 counting only the distinct ones).

The product of its (nonzero) digits is 243, while the sum is 18.

The square root of 1313103303 is about 36236.7672813125. The cubic root of 1313103303 is about 1095.0475165469.

Adding to 1313103303 its reverse (3033013131), we get a palindrome (4346116434).

The spelling of 1313103303 in words is "one billion, three hundred thirteen million, one hundred three thousand, three hundred three".