2021430043 has 8 divisors (see below), whose sum is σ = 2071317248. Its totient is φ = 1971673704.

The previous prime is 2021430031. The next prime is 2021430053. The reversal of 2021430043 is 3400341202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021430043 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 2021430043.

It is not an unprimeable number, because it can be changed into a prime (2021430023) 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 7 ways as a sum of consecutive naturals, for example, 1071 + ... + 63592.

It is an arithmetic number, because the mean of its divisors is an integer number (258914656).

Almost surely, 2^2021430043 is an apocalyptic number.

2021430043 is a deficient number, since it is larger than the sum of its proper divisors (49887205).

2021430043 is an equidigital number, since it uses as much as digits as its factorization.

2021430043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65433.

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

The square root of 2021430043 is about 44960.3163133891. The cubic root of 2021430043 is about 1264.4050993109.

Adding to 2021430043 its reverse (3400341202), we get a palindrome (5421771245).

The spelling of 2021430043 in words is "two billion, twenty-one million, four hundred thirty thousand, forty-three".