43040024242123 has 4 divisors (see below), whose sum is σ = 43277814431488. Its totient is φ = 42802234052760.

The previous prime is 43040024242109. The next prime is 43040024242139. The reversal of 43040024242123 is 32124242004034.

43040024242123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 43040024242123 - 2⁵ = 43040024242091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43040024242223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118895094411 + ... + 118895094772.

It is an arithmetic number, because the mean of its divisors is an integer number (10819453607872).

Almost surely, 2^{43040024242123} is an apocalyptic number.

43040024242123 is a deficient number, since it is larger than the sum of its proper divisors (237790189365).

43040024242123 is a wasteful number, since it uses less digits than its factorization.

43040024242123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237790189364.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 43040024242123 its reverse (32124242004034), we get a palindrome (75164266246157).

The spelling of 43040024242123 in words is "forty-three trillion, forty billion, twenty-four million, two hundred forty-two thousand, one hundred twenty-three".