2103913109 has 16 divisors (see below), whose sum is σ = 2230550784. Its totient is φ = 1980316800.

The previous prime is 2103913099. The next prime is 2103913127. The reversal of 2103913109 is 9013193012.

It is a cyclic number.

It is not a de Polignac number, because 2103913109 - 2²⁴ = 2087135893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103913169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1241867 + ... + 1243559.

It is an arithmetic number, because the mean of its divisors is an integer number (139409424).

Almost surely, 2^2103913109 is an apocalyptic number.

It is an amenable number.

2103913109 is a deficient number, since it is larger than the sum of its proper divisors (126637675).

2103913109 is a wasteful number, since it uses less digits than its factorization.

2103913109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2548.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 2103913109 is about 45868.4325980298. The cubic root of 2103913109 is about 1281.3740755543.

The spelling of 2103913109 in words is "two billion, one hundred three million, nine hundred thirteen thousand, one hundred nine".