12423020 has 24 divisors (see below), whose sum is σ = 26989200. Its totient is φ = 4797632.

The previous prime is 12423011. The next prime is 12423031. The reversal of 12423020 is 2032421.

12423020 = 106² + 107² + ... + 337².

It is a junction number, because it is equal to n+sod(n) for n = 12422986 and 12423004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10130 + ... + 11289.

It is an arithmetic number, because the mean of its divisors is an integer number (1124550).

Almost surely, 2^12423020 is an apocalyptic number.

12423020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12423020 is an abundant number, since it is smaller than the sum of its proper divisors (14566180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12423020 is a wasteful number, since it uses less digits than its factorization.

12423020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21457 (or 21455 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 12423020 is about 3524.6304770855. The cubic root of 12423020 is about 231.6020476630.

Adding to 12423020 its reverse (2032421), we get a palindrome (14455441).

The spelling of 12423020 in words is "twelve million, four hundred twenty-three thousand, twenty".