213520203 has 12 divisors (see below), whose sum is σ = 332142720. Its totient is φ = 131396976.

The previous prime is 213520193. The next prime is 213520207. The reversal of 213520203 is 302025312.

It is not a de Polignac number, because 213520203 - 2¹⁰ = 213519179 is a prime.

It is a super-2 number, since 2×213520203² = 91181754178322418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213520207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 912363 + ... + 912596.

It is an arithmetic number, because the mean of its divisors is an integer number (27678560).

Almost surely, 2^213520203 is an apocalyptic number.

213520203 is a deficient number, since it is larger than the sum of its proper divisors (118622517).

213520203 is a wasteful number, since it uses less digits than its factorization.

213520203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824978 (or 1824975 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 213520203 is about 14612.3305122763. The cubic root of 213520203 is about 597.6950483350.

Adding to 213520203 its reverse (302025312), we get a palindrome (515545515).

The spelling of 213520203 in words is "two hundred thirteen million, five hundred twenty thousand, two hundred three".