2003203213 has 4 divisors (see below), whose sum is σ = 2185312608. Its totient is φ = 1821093820.

The previous prime is 2003203207. The next prime is 2003203249. The reversal of 2003203213 is 3123023002.

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 a de Polignac number, because none of the positive numbers 2^k-2003203213 is a prime.

It is a super-2 number, since 2×2003203213² = 8025646225147046738, 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 (2003203613) 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, 91054681 + ... + 91054702.

It is an arithmetic number, because the mean of its divisors is an integer number (546328152).

Almost surely, 2^2003203213 is an apocalyptic number.

It is an amenable number.

2003203213 is a deficient number, since it is larger than the sum of its proper divisors (182109395).

2003203213 is a wasteful number, since it uses less digits than its factorization.

2003203213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182109394.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 2003203213 is about 44757.1582319521. The cubic root of 2003203213 is about 1260.5933236975.

Adding to 2003203213 its reverse (3123023002), we get a palindrome (5126226215).

The spelling of 2003203213 in words is "two billion, three million, two hundred three thousand, two hundred thirteen".