12423123 has 24 divisors (see below), whose sum is σ = 18594576. Its totient is φ = 7987200.

The previous prime is 12423121. The next prime is 12423133. The reversal of 12423123 is 32132421.

12423123 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12423123 - 2¹ = 12423121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12423096 and 12423105.

It is not an unprimeable number, because it can be changed into a prime (12423121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48211 + ... + 48467.

It is an arithmetic number, because the mean of its divisors is an integer number (774774).

Almost surely, 2^12423123 is an apocalyptic number.

12423123 is a deficient number, since it is larger than the sum of its proper divisors (6171453).

12423123 is a wasteful number, since it uses less digits than its factorization.

12423123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435 (or 432 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 12423123 is about 3524.6450885160. The cubic root of 12423123 is about 231.6026877367.

Adding to 12423123 its reverse (32132421), we get a palindrome (44555544).

The spelling of 12423123 in words is "twelve million, four hundred twenty-three thousand, one hundred twenty-three".