1003065013 has 4 divisors (see below), whose sum is σ = 1004774400. Its totient is φ = 1001355628.

The previous prime is 1003064989. The next prime is 1003065017. The reversal of 1003065013 is 3105603001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3105603001 = 59 ⋅52637339.

It is a cyclic number.

It is not a de Polignac number, because 1003065013 - 2⁵ = 1003064981 is a prime.

It is a super-2 number, since 2×1003065013² = 2012278840609380338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003065017) 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, 853813 + ... + 854986.

It is an arithmetic number, because the mean of its divisors is an integer number (251193600).

Almost surely, 2^1003065013 is an apocalyptic number.

It is an amenable number.

1003065013 is a deficient number, since it is larger than the sum of its proper divisors (1709387).

1003065013 is an equidigital number, since it uses as much as digits as its factorization.

1003065013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709386.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 1003065013 is about 31671.2016349238. The cubic root of 1003065013 is about 1001.0206289621.

Adding to 1003065013 its reverse (3105603001), we get a palindrome (4108668014).

The spelling of 1003065013 in words is "one billion, three million, sixty-five thousand, thirteen".