420124213 has 12 divisors (see below), whose sum is σ = 447408292. Its totient is φ = 394421760.

The previous prime is 420124207. The next prime is 420124231. The reversal of 420124213 is 312421024.

It can be written as a sum of positive squares in 6 ways, for example, as 24830289 + 395293924 = 4983^2 + 19882^2 .

It is not a de Polignac number, because 420124213 - 2²¹ = 418027061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420124283) 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 in 11 ways as a sum of consecutive naturals, for example, 130483 + ... + 133663.

Almost surely, 2^420124213 is an apocalyptic number.

It is an amenable number.

420124213 is a deficient number, since it is larger than the sum of its proper divisors (27284079).

420124213 is a wasteful number, since it uses less digits than its factorization.

420124213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3672 (or 3655 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 420124213 is about 20496.9317947833. The cubic root of 420124213 is about 748.9610580567.

Adding to 420124213 its reverse (312421024), we get a palindrome (732545237).

It can be divided in two parts, 42012 and 4213, that added together give a square (46225 = 215²).

The spelling of 420124213 in words is "four hundred twenty million, one hundred twenty-four thousand, two hundred thirteen".