2102003205 has 32 divisors (see below), whose sum is σ = 3486286848. Its totient is φ = 1080345600.

The previous prime is 2102003191. The next prime is 2102003219. The reversal of 2102003205 is 5023002012.

It is an interprime number because it is at equal distance from previous prime (2102003191) and next prime (2102003219).

It is not a de Polignac number, because 2102003205 - 2⁵ = 2102003173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102687 + ... + 121443.

It is an arithmetic number, because the mean of its divisors is an integer number (108946464).

Almost surely, 2^2102003205 is an apocalyptic number.

It is an amenable number.

2102003205 is a deficient number, since it is larger than the sum of its proper divisors (1384283643).

2102003205 is a wasteful number, since it uses less digits than its factorization.

2102003205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19037.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2102003205 is about 45847.6084981540. The cubic root of 2102003205 is about 1280.9862201215.

Adding to 2102003205 its reverse (5023002012), we get a palindrome (7125005217).

The spelling of 2102003205 in words is "two billion, one hundred two million, three thousand, two hundred five".