12420041 has 2 divisors, whose sum is σ = 12420042. Its totient is φ = 12420040.

The previous prime is 12420029. The next prime is 12420043. The reversal of 12420041 is 14002421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12222016 + 198025 = 3496^2 + 445^2 .

It is a cyclic number.

It is not a de Polignac number, because 12420041 - 2¹⁸ = 12157897 is a prime.

Together with 12420043, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12419998 and 12420025.

It is not a weakly prime, because it can be changed into another prime (12420043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6210020 + 6210021.

It is an arithmetic number, because the mean of its divisors is an integer number (6210021).

Almost surely, 2^12420041 is an apocalyptic number.

It is an amenable number.

12420041 is a deficient number, since it is larger than the sum of its proper divisors (1).

12420041 is an equidigital number, since it uses as much as digits as its factorization.

12420041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 12420041 is about 3524.2078542560. The cubic root of 12420041 is about 231.5835337092.

Adding to 12420041 its reverse (14002421), we get a palindrome (26422462).

The spelling of 12420041 in words is "twelve million, four hundred twenty thousand, forty-one".