43234231 has 2 divisors, whose sum is σ = 43234232. Its totient is φ = 43234230.

The previous prime is 43234223. The next prime is 43234237. The reversal of 43234231 is 13243234.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43234231 - 2³ = 43234223 is a prime.

It is a super-2 number, since 2×43234231² = 3738397460322722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43234237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21617115 + 21617116.

It is an arithmetic number, because the mean of its divisors is an integer number (21617116).

Almost surely, 2^43234231 is an apocalyptic number.

43234231 is a deficient number, since it is larger than the sum of its proper divisors (1).

43234231 is an equidigital number, since it uses as much as digits as its factorization.

43234231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 22.

The square root of 43234231 is about 6575.2742148142. The cubic root of 43234231 is about 350.9747819427.

Adding to 43234231 its reverse (13243234), we get a palindrome (56477465).

The spelling of 43234231 in words is "forty-three million, two hundred thirty-four thousand, two hundred thirty-one".