20330111021 has 8 divisors (see below), whose sum is σ = 22319567904. Its totient is φ = 18364198320.

The previous prime is 20330111003. The next prime is 20330111041. The reversal of 20330111021 is 12011103302.

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 20330111021 - 2¹⁴ = 20330094637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20330110987 and 20330111005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20330111041) 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, 5884235 + ... + 5887688.

It is an arithmetic number, because the mean of its divisors is an integer number (2789945988).

Almost surely, 2^20330111021 is an apocalyptic number.

It is an amenable number.

20330111021 is a deficient number, since it is larger than the sum of its proper divisors (1989456883).

20330111021 is a wasteful number, since it uses less digits than its factorization.

20330111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11772091.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20330111021 its reverse (12011103302), we get a palindrome (32341214323).

The spelling of 20330111021 in words is "twenty billion, three hundred thirty million, one hundred eleven thousand, twenty-one".