213340003 has 4 divisors (see below), whose sum is σ = 217879200. Its totient is φ = 208800808.

The previous prime is 213339989. The next prime is 213340027. The reversal of 213340003 is 300043312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213340003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213340063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2269528 + ... + 2269621.

It is an arithmetic number, because the mean of its divisors is an integer number (54469800).

Almost surely, 2^213340003 is an apocalyptic number.

213340003 is a deficient number, since it is larger than the sum of its proper divisors (4539197).

213340003 is an equidigital number, since it uses as much as digits as its factorization.

213340003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4539196.

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

The square root of 213340003 is about 14606.1631854502. The cubic root of 213340003 is about 597.5268597835.

Adding to 213340003 its reverse (300043312), we get a palindrome (513383315).

The spelling of 213340003 in words is "two hundred thirteen million, three hundred forty thousand, three".