13441442231543 has 4 divisors (see below), whose sum is σ = 13450693053528. Its totient is φ = 13432191409560.

The previous prime is 13441442231537. The next prime is 13441442231557. The reversal of 13441442231543 is 34513224414431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13441442231543 - 2¹⁸ = 13441441969399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13441442231543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13441442231533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4625408813 + ... + 4625411718.

It is an arithmetic number, because the mean of its divisors is an integer number (3362673263382).

Almost surely, 2^{13441442231543} is an apocalyptic number.

13441442231543 is a deficient number, since it is larger than the sum of its proper divisors (9250821985).

13441442231543 is an equidigital number, since it uses as much as digits as its factorization.

13441442231543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9250821984.

The product of its digits is 552960, while the sum is 41.

Adding to 13441442231543 its reverse (34513224414431), we get a palindrome (47954666645974).

The spelling of 13441442231543 in words is "thirteen trillion, four hundred forty-one billion, four hundred forty-two million, two hundred thirty-one thousand, five hundred forty-three".