12420040104 has 48 divisors (see below), whose sum is σ = 33642835200. Its totient is φ = 4139370144.

The previous prime is 12420040103. The next prime is 12420040117. The reversal of 12420040104 is 40104002421.

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

It is not an unprimeable number, because it can be changed into a prime (12420040103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 765177 + ... + 781239.

It is an arithmetic number, because the mean of its divisors is an integer number (700892400).

Almost surely, 2^12420040104 is an apocalyptic number.

It is an amenable number.

12420040104 is an abundant number, since it is smaller than the sum of its proper divisors (21222795096).

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

12420040104 is a wasteful number, since it uses less digits than its factorization.

12420040104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26814 (or 26807 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 12420040104 its reverse (40104002421), we get a palindrome (52524042525).

The spelling of 12420040104 in words is "twelve billion, four hundred twenty million, forty thousand, one hundred four".