100020104 has 48 divisors (see below), whose sum is σ = 201625200. Its totient is φ = 46495584.

The previous prime is 100020103. The next prime is 100020113. The reversal of 100020104 is 401020001.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a junction number, because it is equal to n+sod(n) for n = 100020091 and 100020100.

It is not an unprimeable number, because it can be changed into a prime (100020103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170099 + ... + 170685.

It is an arithmetic number, because the mean of its divisors is an integer number (4200525).

Almost surely, 2^100020104 is an apocalyptic number.

It is an amenable number.

100020104 is an abundant number, since it is smaller than the sum of its proper divisors (101605096).

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

100020104 is a wasteful number, since it uses less digits than its factorization.

100020104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690 (or 667 counting only the distinct ones).

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

The square root of 100020104 is about 10001.0051494837. The cubic root of 100020104 is about 464.1899861110.

Adding to 100020104 its reverse (401020001), we get a palindrome (501040105).

The spelling of 100020104 in words is "one hundred million, twenty thousand, one hundred four".