43130231 has 2 divisors, whose sum is σ = 43130232. Its totient is φ = 43130230.

The previous prime is 43130189. The next prime is 43130249. The reversal of 43130231 is 13203134.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43130231 - 2⁶ = 43130167 is a prime.

It is a super-2 number, since 2×43130231² = 3720433652226722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43130251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21565115 + 21565116.

It is an arithmetic number, because the mean of its divisors is an integer number (21565116).

Almost surely, 2^43130231 is an apocalyptic number.

43130231 is a deficient number, since it is larger than the sum of its proper divisors (1).

43130231 is an equidigital number, since it uses as much as digits as its factorization.

43130231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 43130231 is about 6567.3610377381. The cubic root of 43130231 is about 350.6931325514.

Adding to 43130231 its reverse (13203134), we get a palindrome (56333365).

The spelling of 43130231 in words is "forty-three million, one hundred thirty thousand, two hundred thirty-one".