2003321231 has 4 divisors (see below), whose sum is σ = 2006734632. Its totient is φ = 1999907832.

The previous prime is 2003321227. The next prime is 2003321249. The reversal of 2003321231 is 1321233002.

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 2003321231 - 2² = 2003321227 is a prime.

It is a super-2 number, since 2×2003321231² = 8026591909150710722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003311231) 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, 1705820 + ... + 1706993.

It is an arithmetic number, because the mean of its divisors is an integer number (501683658).

Almost surely, 2^2003321231 is an apocalyptic number.

2003321231 is a deficient number, since it is larger than the sum of its proper divisors (3413401).

2003321231 is an equidigital number, since it uses as much as digits as its factorization.

2003321231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3413400.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2003321231 is about 44758.4766385095. The cubic root of 2003321231 is about 1260.6180790128.

Adding to 2003321231 its reverse (1321233002), we get a palindrome (3324554233).

The spelling of 2003321231 in words is "two billion, three million, three hundred twenty-one thousand, two hundred thirty-one".