12420404223 has 8 divisors (see below), whose sum is σ = 16584165936. Its totient is φ = 8268456000.

The previous prime is 12420404219. The next prime is 12420404233. The reversal of 12420404223 is 32240402421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12420404223 - 2² = 12420404219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12420404193 and 12420404202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12420404203) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2950918 + ... + 2955123.

It is an arithmetic number, because the mean of its divisors is an integer number (2073020742).

Almost surely, 2^12420404223 is an apocalyptic number.

12420404223 is a deficient number, since it is larger than the sum of its proper divisors (4163761713).

12420404223 is an equidigital number, since it uses as much as digits as its factorization.

12420404223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5906745.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 12420404223 its reverse (32240402421), we get a palindrome (44660806644).

The spelling of 12420404223 in words is "twelve billion, four hundred twenty million, four hundred four thousand, two hundred twenty-three".