2103440101 has 12 divisors (see below), whose sum is σ = 2453889900. Its totient is φ = 1797768000.

The previous prime is 2103440099. The next prime is 2103440161. The reversal of 2103440101 is 1010443012.

It can be written as a sum of positive squares in 2 ways, for example, as 1000203876 + 1103236225 = 31626^2 + 33215^2 .

It is not a de Polignac number, because 2103440101 - 2¹ = 2103440099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103440161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44400 + ... + 78601.

It is an arithmetic number, because the mean of its divisors is an integer number (204490825).

Almost surely, 2^2103440101 is an apocalyptic number.

It is an amenable number.

2103440101 is a deficient number, since it is larger than the sum of its proper divisors (350449799).

2103440101 is a wasteful number, since it uses less digits than its factorization.

2103440101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123364 (or 123357 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2103440101 is about 45863.2761695019. The cubic root of 2103440101 is about 1281.2780409140.

Adding to 2103440101 its reverse (1010443012), we get a palindrome (3113883113).

The spelling of 2103440101 in words is "two billion, one hundred three million, four hundred forty thousand, one hundred one".