2103345205 has 48 divisors (see below), whose sum is σ = 2849006160. Its totient is φ = 1481711616.

The previous prime is 2103345199. The next prime is 2103345241. The reversal of 2103345205 is 5025433012.

It can be written as a sum of positive squares in 24 ways, for example, as 1437395569 + 665949636 = 37913^2 + 25806^2 .

It is not a de Polignac number, because 2103345205 - 2¹¹ = 2103343157 is a prime.

It is a super-2 number, since 2×2103345205² = 8848122102792984050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2103345205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5958309 + ... + 5958661.

It is an arithmetic number, because the mean of its divisors is an integer number (59354295).

Almost surely, 2^2103345205 is an apocalyptic number.

It is an amenable number.

2103345205 is a deficient number, since it is larger than the sum of its proper divisors (745660955).

2103345205 is a wasteful number, since it uses less digits than its factorization.

2103345205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 2103345205 is about 45862.2416046141. The cubic root of 2103345205 is about 1281.2587724801.

Adding to 2103345205 its reverse (5025433012), we get a palindrome (7128778217).

The spelling of 2103345205 in words is "two billion, one hundred three million, three hundred forty-five thousand, two hundred five".