2100104004 has 96 divisors (see below), whose sum is σ = 5134581760. Its totient is φ = 667554048.

The previous prime is 2100104003. The next prime is 2100104011. The reversal of 2100104004 is 4004010012.

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

It is not an unprimeable number, because it can be changed into a prime (2100104003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4783617 + ... + 4784055.

Almost surely, 2^2100104004 is an apocalyptic number.

It is an amenable number.

2100104004 is an abundant number, since it is smaller than the sum of its proper divisors (3034477756).

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

2100104004 is a wasteful number, since it uses less digits than its factorization.

2100104004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689 (or 687 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2100104004 is about 45826.8917121814. The cubic root of 2100104004 is about 1280.6003051711.

Adding to 2100104004 its reverse (4004010012), we get a palindrome (6104114016).

The spelling of 2100104004 in words is "two billion, one hundred million, one hundred four thousand, four".