2003324154443 has 4 divisors (see below), whose sum is σ = 2022046810200. Its totient is φ = 1984601498688.

The previous prime is 2003324154421. The next prime is 2003324154493. The reversal of 2003324154443 is 3444514233002.

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

It is a cyclic number.

It is not a de Polignac number, because 2003324154443 - 2²⁸ = 2003055718987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2003324154493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9361327718 + ... + 9361327931.

It is an arithmetic number, because the mean of its divisors is an integer number (505511702550).

Almost surely, 2^{2003324154443} is an apocalyptic number.

2003324154443 is a deficient number, since it is larger than the sum of its proper divisors (18722655757).

2003324154443 is a wasteful number, since it uses less digits than its factorization.

2003324154443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18722655756.

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 2003324154443 its reverse (3444514233002), we get a palindrome (5447838387445).

The spelling of 2003324154443 in words is "two trillion, three billion, three hundred twenty-four million, one hundred fifty-four thousand, four hundred forty-three".