2143112403 has 4 divisors (see below), whose sum is σ = 2857483208. Its totient is φ = 1428741600.

The previous prime is 2143112393. The next prime is 2143112407. The reversal of 2143112403 is 3042113412.

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

It is not a de Polignac number, because 2143112403 - 2⁶ = 2143112339 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2143112403.

It is not an unprimeable number, because it can be changed into a prime (2143112407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357185398 + ... + 357185403.

It is an arithmetic number, because the mean of its divisors is an integer number (714370802).

Almost surely, 2^2143112403 is an apocalyptic number.

2143112403 is a deficient number, since it is larger than the sum of its proper divisors (714370805).

2143112403 is an equidigital number, since it uses as much as digits as its factorization.

2143112403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714370804.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2143112403 is about 46293.7620311852. The cubic root of 2143112403 is about 1289.2831790633.

Adding to 2143112403 its reverse (3042113412), we get a palindrome (5185225815).

The spelling of 2143112403 in words is "two billion, one hundred forty-three million, one hundred twelve thousand, four hundred three".