2120340003 has 4 divisors (see below), whose sum is σ = 2827120008. Its totient is φ = 1413560000.

The previous prime is 2120339987. The next prime is 2120340029. The reversal of 2120340003 is 3000430212.

2120340003 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 2120340003 - 2⁴ = 2120339987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120340403) 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, 353389998 + ... + 353390003.

It is an arithmetic number, because the mean of its divisors is an integer number (706780002).

Almost surely, 2^2120340003 is an apocalyptic number.

2120340003 is a deficient number, since it is larger than the sum of its proper divisors (706780005).

2120340003 is an equidigital number, since it uses as much as digits as its factorization.

2120340003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706780004.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2120340003 is about 46047.1497815011. The cubic root of 2120340003 is about 1284.7003299247.

Adding to 2120340003 its reverse (3000430212), we get a palindrome (5120770215).

The spelling of 2120340003 in words is "two billion, one hundred twenty million, three hundred forty thousand, three".