2042140243 has 16 divisors (see below), whose sum is σ = 2407743072. Its totient is φ = 1707552000.

The previous prime is 2042140237. The next prime is 2042140253. The reversal of 2042140243 is 3420412402.

It is a happy number.

It is not a de Polignac number, because 2042140243 - 2⁹ = 2042139731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2042140253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14773 + ... + 65593.

It is an arithmetic number, because the mean of its divisors is an integer number (150483942).

Almost surely, 2^2042140243 is an apocalyptic number.

2042140243 is a deficient number, since it is larger than the sum of its proper divisors (365602829).

2042140243 is a wasteful number, since it uses less digits than its factorization.

2042140243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51126.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2042140243 is about 45190.0458397643. The cubic root of 2042140243 is about 1268.7085147509.

Adding to 2042140243 its reverse (3420412402), we get a palindrome (5462552645).

The spelling of 2042140243 in words is "two billion, forty-two million, one hundred forty thousand, two hundred forty-three".