2112123323 has 8 divisors (see below), whose sum is σ = 2171633856. Its totient is φ = 2052993600.

The previous prime is 2112123313. The next prime is 2112123329. The reversal of 2112123323 is 3233212112.

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 2112123323 - 2⁸ = 2112123067 is a prime.

It is a super-2 number, since 2×2112123323² = 8922129863121124658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2112123295 and 2112123304.

It is not an unprimeable number, because it can be changed into a prime (2112123329) 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, 83936 + ... + 106157.

It is an arithmetic number, because the mean of its divisors is an integer number (271454232).

Almost surely, 2^2112123323 is an apocalyptic number.

2112123323 is a deficient number, since it is larger than the sum of its proper divisors (59510533).

2112123323 is a wasteful number, since it uses less digits than its factorization.

2112123323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190405.

The product of its digits is 432, while the sum is 20.

The square root of 2112123323 is about 45957.8428888911. The cubic root of 2112123323 is about 1283.0387039085.

Adding to 2112123323 its reverse (3233212112), we get a palindrome (5345335435).

It can be divided in two parts, 21121 and 23323, that added together give a palindrome (44444).

The spelling of 2112123323 in words is "two billion, one hundred twelve million, one hundred twenty-three thousand, three hundred twenty-three".