20200320320 has 56 divisors (see below), whose sum is σ = 48116057184. Its totient is φ = 8077769216.

The previous prime is 20200320281. The next prime is 20200320337. The reversal of 20200320320 is 2302300202.

It is a junction number, because it is equal to n+sod(n) for n = 20200320295 and 20200320304.

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, 1448099 + ... + 1461981.

Almost surely, 2^20200320320 is an apocalyptic number.

20200320320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200320320 is an abundant number, since it is smaller than the sum of its proper divisors (27915736864).

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

20200320320 is a wasteful number, since it uses less digits than its factorization.

20200320320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18447 (or 18437 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

Adding to 20200320320 its reverse (2302300202), we get a palindrome (22502620522).

The spelling of 20200320320 in words is "twenty billion, two hundred million, three hundred twenty thousand, three hundred twenty".