100321320220 has 72 divisors (see below), whose sum is σ = 239038257024. Its totient is φ = 35303664000.

The previous prime is 100321320217. The next prime is 100321320293. The reversal of 100321320220 is 22023123001.

100321320220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 100321320194 and 100321320203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 593611 + ... + 743650.

It is an arithmetic number, because the mean of its divisors is an integer number (3319975792).

Almost surely, 2^100321320220 is an apocalyptic number.

100321320220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100321320220 is an abundant number, since it is smaller than the sum of its proper divisors (138716936804).

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

100321320220 is a wasteful number, since it uses less digits than its factorization.

100321320220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337323 (or 1337310 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 100321320220 its reverse (22023123001), we get a palindrome (122344443221).

The spelling of 100321320220 in words is "one hundred billion, three hundred twenty-one million, three hundred twenty thousand, two hundred twenty".