2112421323 has 8 divisors (see below), whose sum is σ = 2856231936. Its totient is φ = 1388445800.

The previous prime is 2112421291. The next prime is 2112421327. The reversal of 2112421323 is 3231242112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2112421323 - 2⁵ = 2112421291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2112421323.

It is not an unprimeable number, because it can be changed into a prime (2112421327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4958523 + ... + 4958948.

It is an arithmetic number, because the mean of its divisors is an integer number (357028992).

Almost surely, 2^2112421323 is an apocalyptic number.

2112421323 is a deficient number, since it is larger than the sum of its proper divisors (743810613).

2112421323 is an equidigital number, since it uses as much as digits as its factorization.

2112421323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9917545.

The product of its digits is 576, while the sum is 21.

The square root of 2112421323 is about 45961.0848762298. The cubic root of 2112421323 is about 1283.0990424865.

Adding to 2112421323 its reverse (3231242112), we get a palindrome (5343663435).

The spelling of 2112421323 in words is "two billion, one hundred twelve million, four hundred twenty-one thousand, three hundred twenty-three".