20021043033 has 36 divisors (see below), whose sum is σ = 31171091328. Its totient is φ = 12375735120.

The previous prime is 20021043023. The next prime is 20021043047. The reversal of 20021043033 is 33034012002.

20021043033 is a `hidden beast` number, since 20 + 0 + 210 + 430 + 3 + 3 = 666.

It is not a de Polignac number, because 20021043033 - 2⁵ = 20021043001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20021042997 and 20021043015.

It is not an unprimeable number, because it can be changed into a prime (20021043023) 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 in 35 ways as a sum of consecutive naturals, for example, 87148 + ... + 218258.

It is an arithmetic number, because the mean of its divisors is an integer number (865863648).

Almost surely, 2^20021043033 is an apocalyptic number.

It is an amenable number.

20021043033 is a deficient number, since it is larger than the sum of its proper divisors (11150048295).

20021043033 is a wasteful number, since it uses less digits than its factorization.

20021043033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131202 (or 131180 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20021043033 its reverse (33034012002), we get a palindrome (53055055035).

The spelling of 20021043033 in words is "twenty billion, twenty-one million, forty-three thousand, thirty-three".