2120321103 has 4 divisors (see below), whose sum is σ = 2827094808. Its totient is φ = 1413547400.

The previous prime is 2120321087. The next prime is 2120321197. The reversal of 2120321103 is 3011230212.

2120321103 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 2120321103 - 2⁴ = 2120321087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120321003) 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, 353386848 + ... + 353386853.

It is an arithmetic number, because the mean of its divisors is an integer number (706773702).

Almost surely, 2^2120321103 is an apocalyptic number.

2120321103 is a deficient number, since it is larger than the sum of its proper divisors (706773705).

2120321103 is an equidigital number, since it uses as much as digits as its factorization.

2120321103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706773704.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2120321103 is about 46046.9445566153. The cubic root of 2120321103 is about 1284.6965127840.

Adding to 2120321103 its reverse (3011230212), we get a palindrome (5131551315).

The spelling of 2120321103 in words is "two billion, one hundred twenty million, three hundred twenty-one thousand, one hundred three".