20104112 has 30 divisors (see below), whose sum is σ = 45312948. Its totient is φ = 8615712.

The previous prime is 20104067. The next prime is 20104129. The reversal of 20104112 is 21140102.

It is a junction number, because it is equal to n+sod(n) for n = 20104093 and 20104102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12038 + ... + 13605.

Almost surely, 2^20104112 is an apocalyptic number.

It is an amenable number.

20104112 is an abundant number, since it is smaller than the sum of its proper divisors (25208836).

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

20104112 is a wasteful number, since it uses less digits than its factorization.

20104112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25665 (or 25652 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 20104112 is about 4483.7609213695. The cubic root of 20104112 is about 271.9119524706.

Adding to 20104112 its reverse (21140102), we get a palindrome (41244214).

The spelling of 20104112 in words is "twenty million, one hundred four thousand, one hundred twelve".