443231231 has 2 divisors, whose sum is σ = 443231232. Its totient is φ = 443231230.

The previous prime is 443231179. The next prime is 443231233. The reversal of 443231231 is 132132344.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 443231231 - 2¹⁴ = 443214847 is a prime.

It is a super-2 number, since 2×443231231² = 392907848267550722, which contains 22 as substring.

Together with 443231233, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 443231197 and 443231206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (443231233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221615615 + 221615616.

It is an arithmetic number, because the mean of its divisors is an integer number (221615616).

Almost surely, 2^443231231 is an apocalyptic number.

443231231 is a deficient number, since it is larger than the sum of its proper divisors (1).

443231231 is an equidigital number, since it uses as much as digits as its factorization.

443231231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 23.

The square root of 443231231 is about 21053.0575214148. The cubic root of 443231231 is about 762.4478042207.

Adding to 443231231 its reverse (132132344), we get a palindrome (575363575).

It can be divided in two parts, 44323 and 1231, that added together give a palindrome (45554).

The spelling of 443231231 in words is "four hundred forty-three million, two hundred thirty-one thousand, two hundred thirty-one".