13234441643 has 2 divisors, whose sum is σ = 13234441644. Its totient is φ = 13234441642.

The previous prime is 13234441637. The next prime is 13234441651. The reversal of 13234441643 is 34614443231.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (34614443231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13234441643 - 2²² = 13230247339 is a prime.

It is not a weakly prime, because it can be changed into another prime (13234441543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6617220821 + 6617220822.

It is an arithmetic number, because the mean of its divisors is an integer number (6617220822).

Almost surely, 2^13234441643 is an apocalyptic number.

13234441643 is a deficient number, since it is larger than the sum of its proper divisors (1).

13234441643 is an equidigital number, since it uses as much as digits as its factorization.

13234441643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 35.

Adding to 13234441643 its reverse (34614443231), we get a palindrome (47848884874).

The spelling of 13234441643 in words is "thirteen billion, two hundred thirty-four million, four hundred forty-one thousand, six hundred forty-three".