2124120223 has 4 divisors (see below), whose sum is σ = 2158941928. Its totient is φ = 2089298520.

The previous prime is 2124120221. The next prime is 2124120253. The reversal of 2124120223 is 3220214212.

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 2124120223 - 2¹ = 2124120221 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 2124120223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2124120221) 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, 17410761 + ... + 17410882.

It is an arithmetic number, because the mean of its divisors is an integer number (539735482).

Almost surely, 2^2124120223 is an apocalyptic number.

2124120223 is a deficient number, since it is larger than the sum of its proper divisors (34821705).

2124120223 is an equidigital number, since it uses as much as digits as its factorization.

2124120223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34821704.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2124120223 is about 46088.1787772092. The cubic root of 2124120223 is about 1285.4633469634.

Adding to 2124120223 its reverse (3220214212), we get a palindrome (5344334435).

The spelling of 2124120223 in words is "two billion, one hundred twenty-four million, one hundred twenty thousand, two hundred twenty-three".