12420044029 has 2 divisors, whose sum is σ = 12420044030. Its totient is φ = 12420044028.

The previous prime is 12420044017. The next prime is 12420044071. The reversal of 12420044029 is 92044002421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8312515929 + 4107528100 = 91173^2 + 64090^2 .

It is a cyclic number.

It is not a de Polignac number, because 12420044029 - 2⁷ = 12420043901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12420043988 and 12420044006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12420044099) 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 as a sum of consecutive naturals, namely, 6210022014 + 6210022015.

It is an arithmetic number, because the mean of its divisors is an integer number (6210022015).

Almost surely, 2^12420044029 is an apocalyptic number.

It is an amenable number.

12420044029 is a deficient number, since it is larger than the sum of its proper divisors (1).

12420044029 is an equidigital number, since it uses as much as digits as its factorization.

12420044029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

The spelling of 12420044029 in words is "twelve billion, four hundred twenty million, forty-four thousand, twenty-nine".