100321104 has 120 divisors (see below), whose sum is σ = 285919200. Its totient is φ = 30291456.

The previous prime is 100321099. The next prime is 100321139. The reversal of 100321104 is 401123001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 100321104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 673222 + ... + 673370.

It is an arithmetic number, because the mean of its divisors is an integer number (2382660).

Almost surely, 2^100321104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100321104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142959600).

100321104 is an abundant number, since it is smaller than the sum of its proper divisors (185598096).

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

100321104 is a wasteful number, since it uses less digits than its factorization.

100321104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 100321104 is about 10016.0423321789. The cubic root of 100321104 is about 464.6551634616.

Adding to 100321104 its reverse (401123001), we get a palindrome (501444105).

The spelling of 100321104 in words is "one hundred million, three hundred twenty-one thousand, one hundred four".