12408123 has 48 divisors (see below), whose sum is σ = 21348096. Its totient is φ = 6350400.

The previous prime is 12408119. The next prime is 12408127. The reversal of 12408123 is 32180421.

It is an interprime number because it is at equal distance from previous prime (12408119) and next prime (12408127).

It is not a de Polignac number, because 12408123 - 2² = 12408119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 12408123.

It is not an unprimeable number, because it can be changed into a prime (12408127) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 82098 + ... + 82248.

It is an arithmetic number, because the mean of its divisors is an integer number (444752).

Almost surely, 2^12408123 is an apocalyptic number.

12408123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12408123 is a deficient number, since it is larger than the sum of its proper divisors (8939973).

12408123 is a wasteful number, since it uses less digits than its factorization.

12408123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 12408123 is about 3522.5165719979. The cubic root of 12408123 is about 231.5094358367.

Adding to 12408123 its reverse (32180421), we get a palindrome (44588544).

The spelling of 12408123 in words is "twelve million, four hundred eight thousand, one hundred twenty-three".