421013017 has 2 divisors, whose sum is σ = 421013018. Its totient is φ = 421013016.

The previous prime is 421013011. The next prime is 421013029. The reversal of 421013017 is 710310124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 355548736 + 65464281 = 18856^2 + 8091^2 .

It is a cyclic number.

It is not a de Polignac number, because 421013017 - 2¹⁵ = 420980249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421012985 and 421013003.

It is not a weakly prime, because it can be changed into another prime (421013011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210506508 + 210506509.

It is an arithmetic number, because the mean of its divisors is an integer number (210506509).

Almost surely, 2^421013017 is an apocalyptic number.

It is an amenable number.

421013017 is a deficient number, since it is larger than the sum of its proper divisors (1).

421013017 is an equidigital number, since it uses as much as digits as its factorization.

421013017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 421013017 is about 20518.6017311122. The cubic root of 421013017 is about 749.4888469685.

The spelling of 421013017 in words is "four hundred twenty-one million, thirteen thousand, seventeen".