20341305321 has 4 divisors (see below), whose sum is σ = 27121740432. Its totient is φ = 13560870212.

The previous prime is 20341305319. The next prime is 20341305331. The reversal of 20341305321 is 12350314302.

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 a cyclic number.

It is not a de Polignac number, because 20341305321 - 2¹ = 20341305319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20341305291 and 20341305300.

It is not an unprimeable number, because it can be changed into a prime (20341305301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3390217551 + ... + 3390217556.

It is an arithmetic number, because the mean of its divisors is an integer number (6780435108).

Almost surely, 2^20341305321 is an apocalyptic number.

It is an amenable number.

20341305321 is a deficient number, since it is larger than the sum of its proper divisors (6780435111).

20341305321 is an equidigital number, since it uses as much as digits as its factorization.

20341305321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6780435110.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 20341305321 its reverse (12350314302), we get a palindrome (32691619623).

The spelling of 20341305321 in words is "twenty billion, three hundred forty-one million, three hundred five thousand, three hundred twenty-one".