231233441 has 2 divisors, whose sum is σ = 231233442. Its totient is φ = 231233440.

The previous prime is 231233417. The next prime is 231233447. The reversal of 231233441 is 144332132.

231233441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213043216 + 18190225 = 14596^2 + 4265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231233441 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (231233447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115616720 + 115616721.

It is an arithmetic number, because the mean of its divisors is an integer number (115616721).

Almost surely, 2^231233441 is an apocalyptic number.

It is an amenable number.

231233441 is a deficient number, since it is larger than the sum of its proper divisors (1).

231233441 is an equidigital number, since it uses as much as digits as its factorization.

231233441 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 231233441 is about 15206.3618594324. The cubic root of 231233441 is about 613.7858620470.

Adding to 231233441 its reverse (144332132), we get a palindrome (375565573).

It can be divided in two parts, 2312 and 33441, that added together give a palindrome (35753).

The spelling of 231233441 in words is "two hundred thirty-one million, two hundred thirty-three thousand, four hundred forty-one".