43123534105 has 16 divisors (see below), whose sum is σ = 51829084944. Its totient is φ = 34444984320.

The previous prime is 43123534061. The next prime is 43123534123. The reversal of 43123534105 is 50143532134.

It can be written as a sum of positive squares in 8 ways, for example, as 13727402896 + 29396131209 = 117164^2 + 171453^2 .

It is not a de Polignac number, because 43123534105 - 2¹⁷ = 43123403033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12472537 + ... + 12475993.

It is an arithmetic number, because the mean of its divisors is an integer number (3239317809).

Almost surely, 2^43123534105 is an apocalyptic number.

It is an amenable number.

43123534105 is a deficient number, since it is larger than the sum of its proper divisors (8705550839).

43123534105 is a wasteful number, since it uses less digits than its factorization.

43123534105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6636.

The product of its (nonzero) digits is 21600, while the sum is 31.

The spelling of 43123534105 in words is "forty-three billion, one hundred twenty-three million, five hundred thirty-four thousand, one hundred five".