20320312030320 has 80 divisors (see below), whose sum is σ = 63082829395872. Its totient is φ = 5411019801600.

The previous prime is 20320312030297. The next prime is 20320312030327. The reversal of 20320312030320 is 2303021302302.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320312030327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60222607 + ... + 60559086.

Almost surely, 2^{20320312030320} is an apocalyptic number.

20320312030320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20320312030320 is an abundant number, since it is smaller than the sum of its proper divisors (42762517365552).

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

20320312030320 is a wasteful number, since it uses less digits than its factorization.

20320312030320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120782410 (or 120782404 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20320312030320 its reverse (2303021302302), we get a palindrome (22623333332622).

The spelling of 20320312030320 in words is "twenty trillion, three hundred twenty billion, three hundred twelve million, thirty thousand, three hundred twenty".