2100505113 has 24 divisors (see below), whose sum is σ = 3476835648. Its totient is φ = 1197057312.

The previous prime is 2100505097. The next prime is 2100505189. The reversal of 2100505113 is 3115050012.

2100505113 is a `hidden beast` number, since 2 + 100 + 50 + 511 + 3 = 666.

2100505113 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2100505113 - 2⁴ = 2100505097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2100507113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21195 + ... + 68192.

It is an arithmetic number, because the mean of its divisors is an integer number (144868152).

Almost surely, 2^2100505113 is an apocalyptic number.

It is an amenable number.

2100505113 is a deficient number, since it is larger than the sum of its proper divisors (1376330535).

2100505113 is a wasteful number, since it uses less digits than its factorization.

2100505113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89773 (or 89770 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 2100505113 is about 45831.2678528535. The cubic root of 2100505113 is about 1280.6818293255.

Adding to 2100505113 its reverse (3115050012), we get a palindrome (5215555125).

The spelling of 2100505113 in words is "two billion, one hundred million, five hundred five thousand, one hundred thirteen".