2100505112 has 16 divisors (see below), whose sum is σ = 4034507400. Its totient is φ = 1024636480.

The previous prime is 2100505097. The next prime is 2100505189. The reversal of 2100505112 is 2115050012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3201662 + ... + 3202317.

Almost surely, 2^2100505112 is an apocalyptic number.

It is an amenable number.

2100505112 is a deficient number, since it is larger than the sum of its proper divisors (1934002288).

2100505112 is a wasteful number, since it uses less digits than its factorization.

2100505112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6404026 (or 6404022 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 2100505112 is about 45831.2678419439. The cubic root of 2100505112 is about 1280.6818291223.

Adding to 2100505112 its reverse (2115050012), we get a palindrome (4215555124).

The spelling of 2100505112 in words is "two billion, one hundred million, five hundred five thousand, one hundred twelve".