2003323445 has 4 divisors (see below), whose sum is σ = 2403988140. Its totient is φ = 1602658752.

The previous prime is 2003323403. The next prime is 2003323477. The reversal of 2003323445 is 5443233002.

2003323445 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1250753956 + 752569489 = 35366^2 + 27433^2 .

It is a cyclic number.

It is not a de Polignac number, because 2003323445 - 2³⁰ = 929581621 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200332340 + ... + 200332349.

It is an arithmetic number, because the mean of its divisors is an integer number (600997035).

Almost surely, 2^2003323445 is an apocalyptic number.

It is an amenable number.

2003323445 is a deficient number, since it is larger than the sum of its proper divisors (400664695).

2003323445 is an equidigital number, since it uses as much as digits as its factorization.

2003323445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400664694.

The product of its (nonzero) digits is 8640, while the sum is 26.

The square root of 2003323445 is about 44758.5013712479. The cubic root of 2003323445 is about 1260.6185434095.

Adding to 2003323445 its reverse (5443233002), we get a palindrome (7446556447).

The spelling of 2003323445 in words is "two billion, three million, three hundred twenty-three thousand, four hundred forty-five".