2123040043 has 8 divisors (see below), whose sum is σ = 2136024800. Its totient is φ = 2110069440.

The previous prime is 2123040013. The next prime is 2123040071. The reversal of 2123040043 is 3400403212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2123040043 - 2⁹ = 2123039531 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2123040043.

It is not an unprimeable number, because it can be changed into a prime (2123040013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 549946 + ... + 553792.

It is an arithmetic number, because the mean of its divisors is an integer number (267003100).

Almost surely, 2^2123040043 is an apocalyptic number.

2123040043 is a deficient number, since it is larger than the sum of its proper divisors (12984757).

2123040043 is a wasteful number, since it uses less digits than its factorization.

2123040043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7077.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2123040043 is about 46076.4586638340. The cubic root of 2123040043 is about 1285.2454108943.

Adding to 2123040043 its reverse (3400403212), we get a palindrome (5523443255).

The spelling of 2123040043 in words is "two billion, one hundred twenty-three million, forty thousand, forty-three".