1003311013 has 4 divisors (see below), whose sum is σ = 1005931008. Its totient is φ = 1000691020.

The previous prime is 1003311007. The next prime is 1003311047. The reversal of 1003311013 is 3101133001.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 1003311013 - 2⁹ = 1003310501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1003310984 and 1003311002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003315013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1309423 + ... + 1310188.

It is an arithmetic number, because the mean of its divisors is an integer number (251482752).

Almost surely, 2^1003311013 is an apocalyptic number.

It is an amenable number.

1003311013 is a deficient number, since it is larger than the sum of its proper divisors (2619995).

1003311013 is an equidigital number, since it uses as much as digits as its factorization.

1003311013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2619994.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 1003311013 is about 31675.0850511881. The cubic root of 1003311013 is about 1001.1024551460.

Adding to 1003311013 its reverse (3101133001), we get a palindrome (4104444014).

The spelling of 1003311013 in words is "one billion, three million, three hundred eleven thousand, thirteen".