231232213144441 has 2 divisors, whose sum is σ = 231232213144442. Its totient is φ = 231232213144440.

The previous prime is 231232213144391. The next prime is 231232213144469. The reversal of 231232213144441 is 144441312232132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153597082378041 + 77635130766400 = 12393429^2 + 8811080^2 .

It is a cyclic number.

It is not a de Polignac number, because 231232213144441 - 2⁹ = 231232213143929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231232213144441.

It is not a weakly prime, because it can be changed into another prime (231232216144441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115616106572220 + 115616106572221.

It is an arithmetic number, because the mean of its divisors is an integer number (115616106572221).

Almost surely, 2^{231232213144441} is an apocalyptic number.

It is an amenable number.

231232213144441 is a deficient number, since it is larger than the sum of its proper divisors (1).

231232213144441 is an equidigital number, since it uses as much as digits as its factorization.

231232213144441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 37.

Adding to 231232213144441 its reverse (144441312232132), we get a palindrome (375673525376573).

The spelling of 231232213144441 in words is "two hundred thirty-one trillion, two hundred thirty-two billion, two hundred thirteen million, one hundred forty-four thousand, four hundred forty-one".