231235040441 has 2 divisors, whose sum is σ = 231235040442. Its totient is φ = 231235040440.

The previous prime is 231235040431. The next prime is 231235040459. The reversal of 231235040441 is 144040532132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200790025216 + 30445015225 = 448096^2 + 174485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231235040441 is a prime.

It is not a weakly prime, because it can be changed into another prime (231235040431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115617520220 + 115617520221.

It is an arithmetic number, because the mean of its divisors is an integer number (115617520221).

Almost surely, 2^231235040441 is an apocalyptic number.

It is an amenable number.

231235040441 is a deficient number, since it is larger than the sum of its proper divisors (1).

231235040441 is an equidigital number, since it uses as much as digits as its factorization.

231235040441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 231235040441 its reverse (144040532132), we get a palindrome (375275572573).

The spelling of 231235040441 in words is "two hundred thirty-one billion, two hundred thirty-five million, forty thousand, four hundred forty-one".