213143230 has 16 divisors (see below), whose sum is σ = 386460720. Its totient is φ = 84634432.

The previous prime is 213143221. The next prime is 213143309. The reversal of 213143230 is 32341312.

It is a junction number, because it is equal to n+sod(n) for n = 213143198 and 213143207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76420 + ... + 79159.

It is an arithmetic number, because the mean of its divisors is an integer number (24153795).

Almost surely, 2^213143230 is an apocalyptic number.

213143230 is a deficient number, since it is larger than the sum of its proper divisors (173317490).

213143230 is a wasteful number, since it uses less digits than its factorization.

213143230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155723.

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

The square root of 213143230 is about 14599.4256736352. The cubic root of 213143230 is about 597.3430947160.

Adding to 213143230 its reverse (32341312), we get a palindrome (245484542).

The spelling of 213143230 in words is "two hundred thirteen million, one hundred forty-three thousand, two hundred thirty".