20330101321 has 4 divisors (see below), whose sum is σ = 21525989652. Its totient is φ = 19134212992.

The previous prime is 20330101283. The next prime is 20330101349. The reversal of 20330101321 is 12310103302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18911750400 + 1418350921 = 137520^2 + 37661^2 .

It is a cyclic number.

It is not a de Polignac number, because 20330101321 - 2²⁷ = 20195883593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20330101295 and 20330101304.

It is not an unprimeable number, because it can be changed into a prime (20330101361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 597944140 + ... + 597944173.

It is an arithmetic number, because the mean of its divisors is an integer number (5381497413).

Almost surely, 2^20330101321 is an apocalyptic number.

It is an amenable number.

20330101321 is a deficient number, since it is larger than the sum of its proper divisors (1195888331).

20330101321 is a wasteful number, since it uses less digits than its factorization.

20330101321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195888330.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20330101321 its reverse (12310103302), we get a palindrome (32640204623).

The spelling of 20330101321 in words is "twenty billion, three hundred thirty million, one hundred one thousand, three hundred twenty-one".