20020033021 has 8 divisors (see below), whose sum is σ = 20528318720. Its totient is φ = 19517908608.

The previous prime is 20020032961. The next prime is 20020033079. The reversal of 20020033021 is 12033002002.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20020033021 - 2⁹ = 20020032509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20020032992 and 20020033010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020033081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1533741 + ... + 1546738.

It is an arithmetic number, because the mean of its divisors is an integer number (2566039840).

Almost surely, 2^20020033021 is an apocalyptic number.

It is an amenable number.

20020033021 is a deficient number, since it is larger than the sum of its proper divisors (508285699).

20020033021 is an equidigital number, since it uses as much as digits as its factorization.

20020033021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3080643.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20020033021 its reverse (12033002002), we get a palindrome (32053035023).

The spelling of 20020033021 in words is "twenty billion, twenty million, thirty-three thousand, twenty-one".