2103215305 has 8 divisors (see below), whose sum is σ = 2605273344. Its totient is φ = 1628295600.

The previous prime is 2103215293. The next prime is 2103215339. The reversal of 2103215305 is 5035123012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2103215305 - 2⁵ = 2103215273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6784411 + ... + 6784720.

It is an arithmetic number, because the mean of its divisors is an integer number (325659168).

Almost surely, 2^2103215305 is an apocalyptic number.

It is an amenable number.

2103215305 is a deficient number, since it is larger than the sum of its proper divisors (502058039).

2103215305 is a wasteful number, since it uses less digits than its factorization.

2103215305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13569167.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 2103215305 is about 45860.8253850713. The cubic root of 2103215305 is about 1281.2323956177.

Adding to 2103215305 its reverse (5035123012), we get a palindrome (7138338317).

The spelling of 2103215305 in words is "two billion, one hundred three million, two hundred fifteen thousand, three hundred five".