2120323223 has 4 divisors (see below), whose sum is σ = 2120517360. Its totient is φ = 2120129088.

The previous prime is 2120323207. The next prime is 2120323243. The reversal of 2120323223 is 3223230212.

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 2120323223 - 2⁴ = 2120323207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120323195 and 2120323204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120323243) 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, 79643 + ... + 102876.

It is an arithmetic number, because the mean of its divisors is an integer number (530129340).

Almost surely, 2^2120323223 is an apocalyptic number.

2120323223 is a deficient number, since it is larger than the sum of its proper divisors (194137).

2120323223 is a wasteful number, since it uses less digits than its factorization.

2120323223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194136.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 2120323223 is about 46046.9675765951. The cubic root of 2120323223 is about 1284.6969409511.

Adding to 2120323223 its reverse (3223230212), we get a palindrome (5343553435).

The spelling of 2120323223 in words is "two billion, one hundred twenty million, three hundred twenty-three thousand, two hundred twenty-three".