43144123543 has 4 divisors (see below), whose sum is σ = 43735139008. Its totient is φ = 42553108080.

The previous prime is 43144123507. The next prime is 43144123553. The reversal of 43144123543 is 34532144134.

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 43144123543 - 2¹³ = 43144115351 is a prime.

It is a super-2 number, since 2×43144123543² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43144123499 and 43144123508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43144123553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295507623 + ... + 295507768.

It is an arithmetic number, because the mean of its divisors is an integer number (10933784752).

Almost surely, 2^43144123543 is an apocalyptic number.

43144123543 is a deficient number, since it is larger than the sum of its proper divisors (591015465).

43144123543 is an equidigital number, since it uses as much as digits as its factorization.

43144123543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591015464.

The product of its digits is 69120, while the sum is 34.

Adding to 43144123543 its reverse (34532144134), we get a palindrome (77676267677).

The spelling of 43144123543 in words is "forty-three billion, one hundred forty-four million, one hundred twenty-three thousand, five hundred forty-three".