213134203 has 4 divisors (see below), whose sum is σ = 213165288. Its totient is φ = 213103120.

The previous prime is 213134189. The next prime is 213134227. The reversal of 213134203 is 302431312.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 213134203 - 2⁹ = 213133691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213134293) 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, 226 + ... + 20647.

It is an arithmetic number, because the mean of its divisors is an integer number (53291322).

Almost surely, 2^213134203 is an apocalyptic number.

213134203 is a deficient number, since it is larger than the sum of its proper divisors (31085).

213134203 is a wasteful number, since it uses less digits than its factorization.

213134203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31084.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 213134203 is about 14599.1165143648. The cubic root of 213134203 is about 597.3346617446.

Adding to 213134203 its reverse (302431312), we get a palindrome (515565515).

The spelling of 213134203 in words is "two hundred thirteen million, one hundred thirty-four thousand, two hundred three".