20341304320 has 44 divisors (see below), whose sum is σ = 48795305184. Its totient is φ = 8136519680.

The previous prime is 20341304311. The next prime is 20341304369. The reversal of 20341304320 is 2340314302.

It is a happy number.

It is a super-2 number, since 2×20341304320² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20341304291 and 20341304300.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1981336 + ... + 1991575.

Almost surely, 2^20341304320 is an apocalyptic number.

20341304320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20341304320 is an abundant number, since it is smaller than the sum of its proper divisors (28454000864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20341304320 is an equidigital number, since it uses as much as digits as its factorization.

20341304320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3972936 (or 3972918 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20341304320 its reverse (2340314302), we get a palindrome (22681618622).

The spelling of 20341304320 in words is "twenty billion, three hundred forty-one million, three hundred four thousand, three hundred twenty".