131443441202543 has 4 divisors (see below), whose sum is σ = 131656477574640. Its totient is φ = 131230404830448.

The previous prime is 131443441202467. The next prime is 131443441202551. The reversal of 131443441202543 is 345202144344131.

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 131443441202543 - 2⁸ = 131443441202287 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 131443441202543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131443441202443) 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, 106518185123 + ... + 106518186356.

It is an arithmetic number, because the mean of its divisors is an integer number (32914119393660).

Almost surely, 2^{131443441202543} is an apocalyptic number.

131443441202543 is a deficient number, since it is larger than the sum of its proper divisors (213036372097).

131443441202543 is an equidigital number, since it uses as much as digits as its factorization.

131443441202543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213036372096.

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

Adding to 131443441202543 its reverse (345202144344131), we get a palindrome (476645585546674).

The spelling of 131443441202543 in words is "one hundred thirty-one trillion, four hundred forty-three billion, four hundred forty-one million, two hundred two thousand, five hundred forty-three".