2143111103 has 16 divisors (see below), whose sum is σ = 2637308160. Its totient is φ = 1699587456.

The previous prime is 2143111093. The next prime is 2143111121. The reversal of 2143111103 is 3011113412.

It is not a de Polignac number, because 2143111103 - 2¹⁴ = 2143094719 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143111163) 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, 145601 + ... + 159642.

It is an arithmetic number, because the mean of its divisors is an integer number (164831760).

Almost surely, 2^2143111103 is an apocalyptic number.

2143111103 is a deficient number, since it is larger than the sum of its proper divisors (494197057).

2143111103 is a wasteful number, since it uses less digits than its factorization.

2143111103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305326.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 2143111103 is about 46293.7479904144. The cubic root of 2143111103 is about 1289.2829183725.

Adding to 2143111103 its reverse (3011113412), we get a palindrome (5154224515).

The spelling of 2143111103 in words is "two billion, one hundred forty-three million, one hundred eleven thousand, one hundred three".