100320020 has 24 divisors (see below), whose sum is σ = 219832704. Its totient is φ = 38383136.

The previous prime is 100320007. The next prime is 100320023. The reversal of 100320020 is 20023001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100320023) 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, 108584 + ... + 109503.

It is an arithmetic number, because the mean of its divisors is an integer number (9159696).

Almost surely, 2^100320020 is an apocalyptic number.

100320020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100320020 is an abundant number, since it is smaller than the sum of its proper divisors (119512684).

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

100320020 is a wasteful number, since it uses less digits than its factorization.

100320020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218119 (or 218117 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 100320020 is about 10015.9882188429. The cubic root of 100320020 is about 464.6534898755.

Adding to 100320020 its reverse (20023001), we get a palindrome (120343021).

The spelling of 100320020 in words is "one hundred million, three hundred twenty thousand, twenty".