43242717123 has 6 divisors (see below), whose sum is σ = 62461702524. Its totient is φ = 28828478076.

The previous prime is 43242717121. The next prime is 43242717149. The reversal of 43242717123 is 32171724234.

43242717123 is a `hidden beast` number, since 43 + 2 + 427 + 171 + 23 = 666.

It is not a de Polignac number, because 43242717123 - 2¹ = 43242717121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43242717121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2402373165 + ... + 2402373182.

It is an arithmetic number, because the mean of its divisors is an integer number (10410283754).

Almost surely, 2^43242717123 is an apocalyptic number.

43242717123 is a deficient number, since it is larger than the sum of its proper divisors (19218985401).

43242717123 is a wasteful number, since it uses less digits than its factorization.

43242717123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4804746353 (or 4804746350 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The spelling of 43242717123 in words is "forty-three billion, two hundred forty-two million, seven hundred seventeen thousand, one hundred twenty-three".