20213301021 has 8 divisors (see below), whose sum is σ = 27679475424. Its totient is φ = 13111330320.

The previous prime is 20213300999. The next prime is 20213301047. The reversal of 20213301021 is 12010331202.

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

It is not a de Polignac number, because 20213301021 - 2⁷ = 20213300893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213300021) 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, 91050795 + ... + 91051016.

It is an arithmetic number, because the mean of its divisors is an integer number (3459934428).

Almost surely, 2^20213301021 is an apocalyptic number.

It is an amenable number.

20213301021 is a deficient number, since it is larger than the sum of its proper divisors (7466174403).

20213301021 is a wasteful number, since it uses less digits than its factorization.

20213301021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182101851.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20213301021 its reverse (12010331202), we get a palindrome (32223632223).

The spelling of 20213301021 in words is "twenty billion, two hundred thirteen million, three hundred one thousand, twenty-one".