20200100320 has 48 divisors (see below), whose sum is σ = 47757139920. Its totient is φ = 8074215424.

The previous prime is 20200100317. The next prime is 20200100321. The reversal of 20200100320 is 2300100202.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 20200100297 and 20200100306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200100321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180639 + ... + 270241.

It is an arithmetic number, because the mean of its divisors is an integer number (994940415).

Almost surely, 2^20200100320 is an apocalyptic number.

20200100320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200100320 is an abundant number, since it is smaller than the sum of its proper divisors (27557039600).

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

20200100320 is a wasteful number, since it uses less digits than its factorization.

20200100320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91027 (or 91019 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 20200100320 its reverse (2300100202), we get a palindrome (22500200522).

The spelling of 20200100320 in words is "twenty billion, two hundred million, one hundred thousand, three hundred twenty".