2113105445 has 16 divisors (see below), whose sum is σ = 2861637120. Its totient is φ = 1483809600.

The previous prime is 2113105439. The next prime is 2113105447. The reversal of 2113105445 is 5445013112.

It is not a de Polignac number, because 2113105445 - 2¹⁰ = 2113104421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113105447) 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, 660821 + ... + 664010.

It is an arithmetic number, because the mean of its divisors is an integer number (178852320).

Almost surely, 2^2113105445 is an apocalyptic number.

It is an amenable number.

2113105445 is a deficient number, since it is larger than the sum of its proper divisors (748531675).

2113105445 is a wasteful number, since it uses less digits than its factorization.

2113105445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324876.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 2113105445 is about 45968.5266785874. The cubic root of 2113105445 is about 1283.2375409843.

Adding to 2113105445 its reverse (5445013112), we get a palindrome (7558118557).

The spelling of 2113105445 in words is "two billion, one hundred thirteen million, one hundred five thousand, four hundred forty-five".