43124231 has 2 divisors, whose sum is σ = 43124232. Its totient is φ = 43124230.

The previous prime is 43124219. The next prime is 43124233. The reversal of 43124231 is 13242134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43124231 - 2¹⁴ = 43107847 is a prime.

It is a super-2 number, since 2×43124231² = 3719398598682722, which contains 22 as substring.

Together with 43124233, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43124233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21562115 + 21562116.

It is an arithmetic number, because the mean of its divisors is an integer number (21562116).

Almost surely, 2^43124231 is an apocalyptic number.

43124231 is a deficient number, since it is larger than the sum of its proper divisors (1).

43124231 is an equidigital number, since it uses as much as digits as its factorization.

43124231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 20.

The square root of 43124231 is about 6566.9042173615. The cubic root of 43124231 is about 350.6768697404.

Adding to 43124231 its reverse (13242134), we get a palindrome (56366365).

The spelling of 43124231 in words is "forty-three million, one hundred twenty-four thousand, two hundred thirty-one".