1003323399 has 16 divisors (see below), whose sum is σ = 1442912352. Its totient is φ = 616468608.

The previous prime is 1003323389. The next prime is 1003323403. The reversal of 1003323399 is 9933233001.

It is a happy number.

It is not a de Polignac number, because 1003323399 - 2⁴ = 1003323383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003323389) 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, 5769 + ... + 45165.

It is an arithmetic number, because the mean of its divisors is an integer number (90182022).

Almost surely, 2^1003323399 is an apocalyptic number.

1003323399 is a deficient number, since it is larger than the sum of its proper divisors (439588953).

1003323399 is a wasteful number, since it uses less digits than its factorization.

1003323399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40066.

The product of its (nonzero) digits is 13122, while the sum is 33.

The square root of 1003323399 is about 31675.2805670289. The cubic root of 1003323399 is about 1001.1065747074.

The spelling of 1003323399 in words is "one billion, three million, three hundred twenty-three thousand, three hundred ninety-nine".