1313030403 has 12 divisors (see below), whose sum is σ = 1899426360. Its totient is φ = 874048896.

The previous prime is 1313030351. The next prime is 1313030437. The reversal of 1313030403 is 3040303131.

It is not a de Polignac number, because 1313030403 - 2¹⁰ = 1313029379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1313030443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102333 + ... + 114446.

It is an arithmetic number, because the mean of its divisors is an integer number (158285530).

Almost surely, 2^1313030403 is an apocalyptic number.

1313030403 is a deficient number, since it is larger than the sum of its proper divisors (586395957).

1313030403 is a wasteful number, since it uses less digits than its factorization.

1313030403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217458 (or 217455 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 1313030403 is about 36235.7613829212. The cubic root of 1313030403 is about 1095.0272514641.

Adding to 1313030403 its reverse (3040303131), we get a palindrome (4353333534).

The spelling of 1313030403 in words is "one billion, three hundred thirteen million, thirty thousand, four hundred three".