213433203 has 4 divisors (see below), whose sum is σ = 284577608. Its totient is φ = 142288800.

The previous prime is 213433193. The next prime is 213433219. The reversal of 213433203 is 302334312.

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

It is not a de Polignac number, because 213433203 - 2⁶ = 213433139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213433203.

It is not an unprimeable number, because it can be changed into a prime (213433903) 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, 35572198 + ... + 35572203.

It is an arithmetic number, because the mean of its divisors is an integer number (71144402).

Almost surely, 2^213433203 is an apocalyptic number.

213433203 is a deficient number, since it is larger than the sum of its proper divisors (71144405).

213433203 is an equidigital number, since it uses as much as digits as its factorization.

213433203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71144404.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 213433203 is about 14609.3532711068. The cubic root of 213433203 is about 597.6138592445.

Adding to 213433203 its reverse (302334312), we get a palindrome (515767515).

The spelling of 213433203 in words is "two hundred thirteen million, four hundred thirty-three thousand, two hundred three".