1003313103 has 16 divisors (see below), whose sum is σ = 1441361376. Its totient is φ = 617120640.

The previous prime is 1003313099. The next prime is 1003313117. The reversal of 1003313103 is 3013133001.

It is not a de Polignac number, because 1003313103 - 2² = 1003313099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003313303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94693 + ... + 104753.

It is an arithmetic number, because the mean of its divisors is an integer number (90085086).

Almost surely, 2^1003313103 is an apocalyptic number.

1003313103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1003313103 is a deficient number, since it is larger than the sum of its proper divisors (438048273).

1003313103 is a wasteful number, since it uses less digits than its factorization.

1003313103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12634.

The product of its (nonzero) digits is 81, while the sum is 15.

The square root of 1003313103 is about 31675.1180424004. The cubic root of 1003313103 is about 1001.1031502786.

Adding to 1003313103 its reverse (3013133001), we get a palindrome (4016446104).

The spelling of 1003313103 in words is "one billion, three million, three hundred thirteen thousand, one hundred three".