2105503212 has 24 divisors (see below), whose sum is σ = 4915033200. Its totient is φ = 701521216.

The previous prime is 2105503201. The next prime is 2105503223. The reversal of 2105503212 is 2123055012.

It is an interprime number because it is at equal distance from previous prime (2105503201) and next prime (2105503223).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10287 + ... + 65702.

It is an arithmetic number, because the mean of its divisors is an integer number (204793050).

Almost surely, 2^2105503212 is an apocalyptic number.

It is an amenable number.

2105503212 is an abundant number, since it is smaller than the sum of its proper divisors (2809529988).

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

2105503212 is a wasteful number, since it uses less digits than its factorization.

2105503212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78305 (or 78303 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2105503212 is about 45885.7626285104. The cubic root of 2105503212 is about 1281.6968080951.

Adding to 2105503212 its reverse (2123055012), we get a palindrome (4228558224).

The spelling of 2105503212 in words is "two billion, one hundred five million, five hundred three thousand, two hundred twelve".