200430231 has 16 divisors (see below), whose sum is σ = 276784128. Its totient is φ = 128928800.

The previous prime is 200430193. The next prime is 200430233. The reversal of 200430231 is 132034002.

200430231 is a nontrivial binomial coefficient, being equal to C(20022, 2).

It is a cyclic number.

It is not a de Polignac number, because 200430231 - 2⁷ = 200430103 is a prime.

It is a super-2 number, since 2×200430231² = 80344554997426722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 200430231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200430233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1 + ... + 20021.

It is an arithmetic number, because the mean of its divisors is an integer number (17299008).

Almost surely, 2^200430231 is an apocalyptic number.

200430231 is the 20021-st triangular number and also the 10011-st hexagonal number.

200430231 is a deficient number, since it is larger than the sum of its proper divisors (76353897).

200430231 is a wasteful number, since it uses less digits than its factorization.

200430231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20142.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 200430231 is about 14157.3384151118. The cubic root of 200430231 is about 585.2225816755. Note that the first 3 decimals are identical.

Adding to 200430231 its reverse (132034002), we get a palindrome (332464233).

It can be divided in two parts, 200430 and 231, that added together give a triangular number (200661 = T₆₃₃).

The spelling of 200430231 in words is "two hundred million, four hundred thirty thousand, two hundred thirty-one".