2012103205 has 32 divisors (see below), whose sum is σ = 2853181440. Its totient is φ = 1333013760.

The previous prime is 2012103157. The next prime is 2012103209. The reversal of 2012103205 is 5023012102.

It is not a de Polignac number, because 2012103205 - 2¹⁹ = 2011578917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012103209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 898347 + ... + 900583.

It is an arithmetic number, because the mean of its divisors is an integer number (89161920).

Almost surely, 2^2012103205 is an apocalyptic number.

It is an amenable number.

2012103205 is a deficient number, since it is larger than the sum of its proper divisors (841078235).

2012103205 is a wasteful number, since it uses less digits than its factorization.

2012103205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3109.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2012103205 is about 44856.4733901362. The cubic root of 2012103205 is about 1262.4574541098.

Adding to 2012103205 its reverse (5023012102), we get a palindrome (7035115307).

The spelling of 2012103205 in words is "two billion, twelve million, one hundred three thousand, two hundred five".