1003020313 has 8 divisors (see below), whose sum is σ = 1006559840. Its totient is φ = 999488160.

The previous prime is 1003020301. The next prime is 1003020331. The reversal of 1003020313 is 3130203001.

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 1003020313 - 2²⁵ = 969465881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1003020293 and 1003020302.

It is not an unprimeable number, because it can be changed into a prime (1003020353) 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, 420781 + ... + 423157.

It is an arithmetic number, because the mean of its divisors is an integer number (125819980).

Almost surely, 2^1003020313 is an apocalyptic number.

It is an amenable number.

1003020313 is a deficient number, since it is larger than the sum of its proper divisors (3539527).

1003020313 is an equidigital number, since it uses as much as digits as its factorization.

1003020313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3687.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 1003020313 is about 31670.4959386493. The cubic root of 1003020313 is about 1001.0057591095.

Adding to 1003020313 its reverse (3130203001), we get a palindrome (4133223314).

The spelling of 1003020313 in words is "one billion, three million, twenty thousand, three hundred thirteen".