131104135443 has 4 divisors (see below), whose sum is σ = 174805513928. Its totient is φ = 87402756960.

The previous prime is 131104135433. The next prime is 131104135489. The reversal of 131104135443 is 344531401131.

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

It is not a de Polignac number, because 131104135443 - 2⁵ = 131104135411 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 131104135443.

It is not an unprimeable number, because it can be changed into a prime (131104135403) 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, 21850689238 + ... + 21850689243.

It is an arithmetic number, because the mean of its divisors is an integer number (43701378482).

Almost surely, 2^131104135443 is an apocalyptic number.

131104135443 is a deficient number, since it is larger than the sum of its proper divisors (43701378485).

131104135443 is an equidigital number, since it uses as much as digits as its factorization.

131104135443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43701378484.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 131104135443 its reverse (344531401131), we get a palindrome (475635536574).

The spelling of 131104135443 in words is "one hundred thirty-one billion, one hundred four million, one hundred thirty-five thousand, four hundred forty-three".