2003323213 has 4 divisors (see below), whose sum is σ = 2003518048. Its totient is φ = 2003128380.

The previous prime is 2003323211. The next prime is 2003323241. The reversal of 2003323213 is 3123233002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2003323213 - 2¹ = 2003323211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003323211) 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, 81081 + ... + 102862.

It is an arithmetic number, because the mean of its divisors is an integer number (500879512).

Almost surely, 2^2003323213 is an apocalyptic number.

It is an amenable number.

2003323213 is a deficient number, since it is larger than the sum of its proper divisors (194835).

2003323213 is a wasteful number, since it uses less digits than its factorization.

2003323213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194834.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 2003323213 is about 44758.4987795614. The cubic root of 2003323213 is about 1260.6184947464.

Adding to 2003323213 its reverse (3123233002), we get a palindrome (5126556215).

The spelling of 2003323213 in words is "two billion, three million, three hundred twenty-three thousand, two hundred thirteen".