430221231 has 12 divisors (see below), whose sum is σ = 677924520. Its totient is φ = 260740080.

The previous prime is 430221229. The next prime is 430221247. The reversal of 430221231 is 132122034.

430221231 is a `hidden beast` number, since 430 + 2 + 2 + 1 + 231 = 666.

It is not a de Polignac number, because 430221231 - 2¹ = 430221229 is a prime.

It is a super-2 number, since 2×430221231² = 370180615206310722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (430221031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2172736 + ... + 2172933.

It is an arithmetic number, because the mean of its divisors is an integer number (56493710).

Almost surely, 2^430221231 is an apocalyptic number.

430221231 is a deficient number, since it is larger than the sum of its proper divisors (247703289).

430221231 is a wasteful number, since it uses less digits than its factorization.

430221231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4345686 (or 4345683 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 430221231 is about 20741.7750204750. The cubic root of 430221231 is about 754.9136523913.

Adding to 430221231 its reverse (132122034), we get a palindrome (562343265).

It can be divided in two parts, 43022 and 1231, that added together give a triangular number (44253 = T₂₉₇).

The spelling of 430221231 in words is "four hundred thirty million, two hundred twenty-one thousand, two hundred thirty-one".