12420413 has 2 divisors, whose sum is σ = 12420414. Its totient is φ = 12420412.

The previous prime is 12420389. The next prime is 12420451. The reversal of 12420413 is 31402421.

12420413 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11847364 + 573049 = 3442^2 + 757^2 .

It is a cyclic number.

It is not a de Polignac number, because 12420413 - 2⁶ = 12420349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12420391 and 12420400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12420313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6210206 + 6210207.

It is an arithmetic number, because the mean of its divisors is an integer number (6210207).

Almost surely, 2^12420413 is an apocalyptic number.

It is an amenable number.

12420413 is a deficient number, since it is larger than the sum of its proper divisors (1).

12420413 is an equidigital number, since it uses as much as digits as its factorization.

12420413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 12420413 is about 3524.2606316787. The cubic root of 12420413 is about 231.5858457846.

Adding to 12420413 its reverse (31402421), we get a palindrome (43822834).

The spelling of 12420413 in words is "twelve million, four hundred twenty thousand, four hundred thirteen".