20020110321 has 4 divisors (see below), whose sum is σ = 26693480432. Its totient is φ = 13346740212.

The previous prime is 20020110307. The next prime is 20020110359. The reversal of 20020110321 is 12301102002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20020110321 - 2⁵ = 20020110289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20020110297 and 20020110306.

It is not an unprimeable number, because it can be changed into a prime (20020110301) 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 3 ways as a sum of consecutive naturals, for example, 3336685051 + ... + 3336685056.

It is an arithmetic number, because the mean of its divisors is an integer number (6673370108).

Almost surely, 2^20020110321 is an apocalyptic number.

It is an amenable number.

20020110321 is a deficient number, since it is larger than the sum of its proper divisors (6673370111).

20020110321 is an equidigital number, since it uses as much as digits as its factorization.

20020110321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6673370110.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20020110321 its reverse (12301102002), we get a palindrome (32321212323).

The spelling of 20020110321 in words is "twenty billion, twenty million, one hundred ten thousand, three hundred twenty-one".