2100031103 has 4 divisors (see below), whose sum is σ = 2100189888. Its totient is φ = 2099872320.

The previous prime is 2100031093. The next prime is 2100031117. The reversal of 2100031103 is 3011300012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2100031103 - 2²⁶ = 2032922239 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 (2100039103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57551 + ... + 86672.

It is an arithmetic number, because the mean of its divisors is an integer number (525047472).

Almost surely, 2^2100031103 is an apocalyptic number.

2100031103 is a deficient number, since it is larger than the sum of its proper divisors (158785).

2100031103 is a wasteful number, since it uses less digits than its factorization.

2100031103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158784.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 2100031103 is about 45826.0963098538. The cubic root of 2100031103 is about 1280.5854871553.

Adding to 2100031103 its reverse (3011300012), we get a palindrome (5111331115).

The spelling of 2100031103 in words is "two billion, one hundred million, thirty-one thousand, one hundred three".