12281923 has 8 divisors (see below), whose sum is σ = 13141520. Its totient is φ = 11443680.

The previous prime is 12281909. The next prime is 12281947. The reversal of 12281923 is 32918221.

12281923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12281923 - 2¹⁷ = 12150851 is a prime.

It is a super-3 number, since 3×12281923³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12281891 and 12281900.

It is not an unprimeable number, because it can be changed into a prime (12281963) 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, 4140 + ... + 6457.

It is an arithmetic number, because the mean of its divisors is an integer number (1642690).

Almost surely, 2^12281923 is an apocalyptic number.

12281923 is a deficient number, since it is larger than the sum of its proper divisors (859597).

12281923 is a wasteful number, since it uses less digits than its factorization.

12281923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10677.

The product of its digits is 1728, while the sum is 28.

The square root of 12281923 is about 3504.5574613637. The cubic root of 12281923 is about 230.7218843921.

The spelling of 12281923 in words is "twelve million, two hundred eighty-one thousand, nine hundred twenty-three".