1313515003 has 4 divisors (see below), whose sum is σ = 1315104120. Its totient is φ = 1311925888.

The previous prime is 1313515001. The next prime is 1313515039. The reversal of 1313515003 is 3005153131.

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 1313515003 - 2¹ = 1313515001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313515001) 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, 793318 + ... + 794971.

It is an arithmetic number, because the mean of its divisors is an integer number (328776030).

Almost surely, 2^1313515003 is an apocalyptic number.

1313515003 is a deficient number, since it is larger than the sum of its proper divisors (1589117).

1313515003 is an equidigital number, since it uses as much as digits as its factorization.

1313515003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589116.

The product of its (nonzero) digits is 675, while the sum is 22.

The square root of 1313515003 is about 36242.4475304856. The cubic root of 1313515003 is about 1095.1619487608.

Adding to 1313515003 its reverse (3005153131), we get a palindrome (4318668134).

The spelling of 1313515003 in words is "one billion, three hundred thirteen million, five hundred fifteen thousand, three".