1003321996 has 12 divisors (see below), whose sum is σ = 1756106352. Its totient is φ = 501577328.

The previous prime is 1003321993. The next prime is 1003322003. The reversal of 1003321996 is 6991233001.

It is not an unprimeable number, because it can be changed into a prime (1003321993) 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, 11721 + ... + 46303.

It is an arithmetic number, because the mean of its divisors is an integer number (146342196).

Almost surely, 2^1003321996 is an apocalyptic number.

It is an amenable number.

1003321996 is a deficient number, since it is larger than the sum of its proper divisors (752784356).

1003321996 is a wasteful number, since it uses less digits than its factorization.

1003321996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41840 (or 41838 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 1003321996 is about 31675.2584204139. The cubic root of 1003321996 is about 1001.1061080738.

Adding to 1003321996 its reverse (6991233001), we get a palindrome (7994554997).

The spelling of 1003321996 in words is "one billion, three million, three hundred twenty-one thousand, nine hundred ninety-six".