12320112420 has 192 divisors, whose sum is σ = 47787264000. Its totient is φ = 2560014720.

The previous prime is 12320112419. The next prime is 12320112451. The reversal of 12320112420 is 2421102321.

It is a happy number.

12320112420 is a `hidden beast` number, since 1 + 232 + 0 + 1 + 12 + 420 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12320112393 and 12320112402.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 106570 + ... + 189729.

It is an arithmetic number, because the mean of its divisors is an integer number (248892000).

Almost surely, 2^12320112420 is an apocalyptic number.

12320112420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12320112420 is an abundant number, since it is smaller than the sum of its proper divisors (35467151580).

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

12320112420 is a wasteful number, since it uses less digits than its factorization.

12320112420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296335 (or 296327 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12320112420 its reverse (2421102321), we get a palindrome (14741214741).

The spelling of 12320112420 in words is "twelve billion, three hundred twenty million, one hundred twelve thousand, four hundred twenty".