2040012043 has 4 divisors (see below), whose sum is σ = 2042376768. Its totient is φ = 2037647320.

The previous prime is 2040012001. The next prime is 2040012059. The reversal of 2040012043 is 3402100402.

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 2040012043 - 2¹³ = 2040003851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2040019043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1181068 + ... + 1182793.

It is an arithmetic number, because the mean of its divisors is an integer number (510594192).

Almost surely, 2^2040012043 is an apocalyptic number.

2040012043 is a deficient number, since it is larger than the sum of its proper divisors (2364725).

2040012043 is an equidigital number, since it uses as much as digits as its factorization.

2040012043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364724.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2040012043 is about 45166.4924805989. The cubic root of 2040012043 is about 1268.2676367775.

Adding to 2040012043 its reverse (3402100402), we get a palindrome (5442112445).

The spelling of 2040012043 in words is "two billion, forty million, twelve thousand, forty-three".