12423405212208 has 120 divisors (see below), whose sum is σ = 35351259602256. Its totient is φ = 4071748262400.

The previous prime is 12423405212173. The next prime is 12423405212221. The reversal of 12423405212208 is 80221250432421.

12423405212208 is a `hidden beast` number, since 1 + 2 + 4 + 2 + 3 + 405 + 21 + 220 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23730166 + ... + 24248042.

Almost surely, 2^{12423405212208} is an apocalyptic number.

12423405212208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12423405212208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17675629801128).

12423405212208 is an abundant number, since it is smaller than the sum of its proper divisors (22927854390048).

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

12423405212208 is a wasteful number, since it uses less digits than its factorization.

12423405212208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520683 (or 520674 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

Adding to 12423405212208 its reverse (80221250432421), we get a palindrome (92644655644629).

The spelling of 12423405212208 in words is "twelve trillion, four hundred twenty-three billion, four hundred five million, two hundred twelve thousand, two hundred eight".