2021044043 has 2 divisors, whose sum is σ = 2021044044. Its totient is φ = 2021044042.

The previous prime is 2021044021. The next prime is 2021044049. The reversal of 2021044043 is 3404401202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2021044043 - 2⁶ = 2021043979 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2021044049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010522021 + 1010522022.

It is an arithmetic number, because the mean of its divisors is an integer number (1010522022).

Almost surely, 2^2021044043 is an apocalyptic number.

2021044043 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021044043 is an equidigital number, since it uses as much as digits as its factorization.

2021044043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2021044043 is about 44956.0234340183. The cubic root of 2021044043 is about 1264.3246131489.

Adding to 2021044043 its reverse (3404401202), we get a palindrome (5425445245).

The spelling of 2021044043 in words is "two billion, twenty-one million, forty-four thousand, forty-three".