20001300320 has 48 divisors (see below), whose sum is σ = 47301807168. Its totient is φ = 7992268800.

The previous prime is 20001300289. The next prime is 20001300391. The reversal of 20001300320 is 2300310002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92345 + ... + 220295.

It is an arithmetic number, because the mean of its divisors is an integer number (985454316).

Almost surely, 2^20001300320 is an apocalyptic number.

20001300320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20001300320 is an abundant number, since it is smaller than the sum of its proper divisors (27300506848).

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

20001300320 is a wasteful number, since it uses less digits than its factorization.

20001300320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128943 (or 128935 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

Adding to 20001300320 its reverse (2300310002), we get a palindrome (22301610322).

The spelling of 20001300320 in words is "twenty billion, one million, three hundred thousand, three hundred twenty".