212003 has 4 divisors (see below), whose sum is σ = 231288. Its totient is φ = 192720.

The previous prime is 211997. The next prime is 212029. The reversal of 212003 is 300212.

212003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 212003 - 2⁸ = 211747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212203) 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, 9626 + ... + 9647.

It is an arithmetic number, because the mean of its divisors is an integer number (57822).

2²¹²⁰⁰³ is an apocalyptic number.

212003 is a deficient number, since it is larger than the sum of its proper divisors (19285).

212003 is a wasteful number, since it uses less digits than its factorization.

212003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19284.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 212003 is about 460.4378351091. The cubic root of 212003 is about 59.6276008371.

Adding to 212003 its reverse (300212), we get a palindrome (512215).

Subtracting 212003 from its reverse (300212), we obtain a square (88209 = 297²).

The spelling of 212003 in words is "two hundred twelve thousand, three", and thus it is an iban number.