2003543423 has 8 divisors (see below), whose sum is σ = 2363627520. Its totient is φ = 1661925240.

The previous prime is 2003543413. The next prime is 2003543447. The reversal of 2003543423 is 3243453002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2003543423 - 2²⁰ = 2002494847 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2003543392 and 2003543401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003543413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4616243 + ... + 4616676.

It is an arithmetic number, because the mean of its divisors is an integer number (295453440).

Almost surely, 2^2003543423 is an apocalyptic number.

2003543423 is a deficient number, since it is larger than the sum of its proper divisors (360084097).

2003543423 is an equidigital number, since it uses as much as digits as its factorization.

2003543423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9232957.

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

The square root of 2003543423 is about 44760.9586916992. The cubic root of 2003543423 is about 1260.6646831042.

Adding to 2003543423 its reverse (3243453002), we get a palindrome (5246996425).

The spelling of 2003543423 in words is "two billion, three million, five hundred forty-three thousand, four hundred twenty-three".