12423016 has 16 divisors (see below), whose sum is σ = 23675940. Its totient is φ = 6109440.

The previous prime is 12423011. The next prime is 12423031. The reversal of 12423016 is 61032421.

It can be written as a sum of positive squares in 2 ways, for example, as 8236900 + 4186116 = 2870^2 + 2046^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12422984 and 12423002.

It is not an unprimeable number, because it can be changed into a prime (12423011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12241 + ... + 13216.

Almost surely, 2^12423016 is an apocalyptic number.

It is an amenable number.

12423016 is a deficient number, since it is larger than the sum of its proper divisors (11252924).

12423016 is a wasteful number, since it uses less digits than its factorization.

12423016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25524 (or 25520 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 12423016 is about 3524.6299096501. The cubic root of 12423016 is about 231.6020228057.

Adding to 12423016 its reverse (61032421), we get a palindrome (73455437).

The spelling of 12423016 in words is "twelve million, four hundred twenty-three thousand, sixteen".