213200231 has 4 divisors (see below), whose sum is σ = 216382392. Its totient is φ = 210018072.

The previous prime is 213200227. The next prime is 213200233. The reversal of 213200231 is 132002312.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 213200231 - 2² = 213200227 is a prime.

It is a super-2 number, since 2×213200231² = 90908676996906722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213200233) 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, 1590980 + ... + 1591113.

It is an arithmetic number, because the mean of its divisors is an integer number (54095598).

Almost surely, 2^213200231 is an apocalyptic number.

213200231 is a deficient number, since it is larger than the sum of its proper divisors (3182161).

213200231 is an equidigital number, since it uses as much as digits as its factorization.

213200231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3182160.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 213200231 is about 14601.3777089698. The cubic root of 213200231 is about 597.3963392235.

Adding to 213200231 its reverse (132002312), we get a palindrome (345202543).

It can be divided in two parts, 2 and 13200231, that multiplied together give a palindrome (26400462).

The spelling of 213200231 in words is "two hundred thirteen million, two hundred thousand, two hundred thirty-one".