12342404020 has 24 divisors (see below), whose sum is σ = 26175676968. Its totient is φ = 4888080000.

The previous prime is 12342403987. The next prime is 12342404023. The reversal of 12342404020 is 2040424321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2137767696 + 10204636324 = 46236^2 + 101018^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12342403982 and 12342404000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12342404023) 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, 3053031 + ... + 3057070.

It is an arithmetic number, because the mean of its divisors is an integer number (1090653207).

Almost surely, 2^12342404020 is an apocalyptic number.

12342404020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12342404020 is an abundant number, since it is smaller than the sum of its proper divisors (13833272948).

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

12342404020 is a wasteful number, since it uses less digits than its factorization.

12342404020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6110211 (or 6110209 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 12342404020 its reverse (2040424321), we get a palindrome (14382828341).

The spelling of 12342404020 in words is "twelve billion, three hundred forty-two million, four hundred four thousand, twenty".