213500203 has 24 divisors (see below), whose sum is σ = 256779072. Its totient is φ = 176886864.

The previous prime is 213500197. The next prime is 213500227. The reversal of 213500203 is 302005312.

213500203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213500203 - 2²⁵ = 179945771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213500293) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 224976 + ... + 225922.

It is an arithmetic number, because the mean of its divisors is an integer number (10699128).

Almost surely, 2^213500203 is an apocalyptic number.

213500203 is a deficient number, since it is larger than the sum of its proper divisors (43278869).

213500203 is a wasteful number, since it uses less digits than its factorization.

213500203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111 (or 1104 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 213500203 is about 14611.6461427178. The cubic root of 213500203 is about 597.6763861288.

Adding to 213500203 its reverse (302005312), we get a palindrome (515505515).

The spelling of 213500203 in words is "two hundred thirteen million, five hundred thousand, two hundred three".