2321120203 has 4 divisors (see below), whose sum is σ = 2321285688. Its totient is φ = 2320954720.

The previous prime is 2321120111. The next prime is 2321120261. The reversal of 2321120203 is 3020211232.

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 2321120203 - 2²¹ = 2319023051 is a prime.

It is a super-2 number, since 2×2321120203² = 10775197993549522418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2321120303) 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, 59533 + ... + 90478.

It is an arithmetic number, because the mean of its divisors is an integer number (580321422).

Almost surely, 2^2321120203 is an apocalyptic number.

2321120203 is a deficient number, since it is larger than the sum of its proper divisors (165485).

2321120203 is a wasteful number, since it uses less digits than its factorization.

2321120203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165484.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2321120203 is about 48178.0053862756. The cubic root of 2321120203 is about 1324.0342226302.

Adding to 2321120203 its reverse (3020211232), we get a palindrome (5341331435).

The spelling of 2321120203 in words is "two billion, three hundred twenty-one million, one hundred twenty thousand, two hundred three".