2121104103 has 16 divisors (see below), whose sum is σ = 2968857600. Its totient is φ = 1345256640.

The previous prime is 2121104081. The next prime is 2121104107. The reversal of 2121104103 is 3014011212.

It is not a de Polignac number, because 2121104103 - 2⁵ = 2121104071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121104107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187798 + ... + 198771.

It is an arithmetic number, because the mean of its divisors is an integer number (185553600).

Almost surely, 2^2121104103 is an apocalyptic number.

2121104103 is a deficient number, since it is larger than the sum of its proper divisors (847753497).

2121104103 is a wasteful number, since it uses less digits than its factorization.

2121104103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386662.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2121104103 is about 46055.4459646196. The cubic root of 2121104103 is about 1284.8546324780.

Adding to 2121104103 its reverse (3014011212), we get a palindrome (5135115315).

The spelling of 2121104103 in words is "two billion, one hundred twenty-one million, one hundred four thousand, one hundred three".