105543044319 has 4 divisors (see below), whose sum is σ = 140724059096. Its totient is φ = 70362029544.

The previous prime is 105543044297. The next prime is 105543044333. The reversal of 105543044319 is 913440345501.

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

It is not a de Polignac number, because 105543044319 - 2²⁰ = 105541995743 is a prime.

It is a super-2 number, since 2×105543044319² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105543044389) 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, 17590507384 + ... + 17590507389.

It is an arithmetic number, because the mean of its divisors is an integer number (35181014774).

Almost surely, 2^105543044319 is an apocalyptic number.

105543044319 is a deficient number, since it is larger than the sum of its proper divisors (35181014777).

105543044319 is an equidigital number, since it uses as much as digits as its factorization.

105543044319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35181014776.

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 105543044319 in words is "one hundred five billion, five hundred forty-three million, forty-four thousand, three hundred nineteen".