12423105 has 32 divisors (see below), whose sum is σ = 23051520. Its totient is φ = 6336000.

The previous prime is 12423097. The next prime is 12423109. The reversal of 12423105 is 50132421.

It is not a de Polignac number, because 12423105 - 2³ = 12423097 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12423109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1105 + ... + 5105.

It is an arithmetic number, because the mean of its divisors is an integer number (720360).

Almost surely, 2^12423105 is an apocalyptic number.

12423105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12423105 is a deficient number, since it is larger than the sum of its proper divisors (10628415).

12423105 is a wasteful number, since it uses less digits than its factorization.

12423105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4038 (or 4032 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 12423105 is about 3524.6425350665. The cubic root of 12423105 is about 231.6025758794.

Adding to 12423105 its reverse (50132421), we get a palindrome (62555526).

The spelling of 12423105 in words is "twelve million, four hundred twenty-three thousand, one hundred five".