424243013 has 2 divisors, whose sum is σ = 424243014. Its totient is φ = 424243012.

The previous prime is 424242997. The next prime is 424243037. The reversal of 424243013 is 310342424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 372374209 + 51868804 = 19297^2 + 7202^2 .

It is a cyclic number.

It is not a de Polignac number, because 424243013 - 2⁴ = 424242997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 424243013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424243063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212121506 + 212121507.

It is an arithmetic number, because the mean of its divisors is an integer number (212121507).

Almost surely, 2^424243013 is an apocalyptic number.

It is an amenable number.

424243013 is a deficient number, since it is larger than the sum of its proper divisors (1).

424243013 is an equidigital number, since it uses as much as digits as its factorization.

424243013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 424243013 is about 20597.1603139850. The cubic root of 424243013 is about 751.4006495756.

Adding to 424243013 its reverse (310342424), we get a palindrome (734585437).

The spelling of 424243013 in words is "four hundred twenty-four million, two hundred forty-three thousand, thirteen".