421130253 has 16 divisors (see below), whose sum is σ = 591970176. Its totient is φ = 265774080.

The previous prime is 421130251. The next prime is 421130291. The reversal of 421130253 is 352031124.

It is not a de Polignac number, because 421130253 - 2¹ = 421130251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421130251) 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 15 ways as a sum of consecutive naturals, for example, 24768 + ... + 38153.

It is an arithmetic number, because the mean of its divisors is an integer number (36998136).

Almost surely, 2^421130253 is an apocalyptic number.

It is an amenable number.

421130253 is a deficient number, since it is larger than the sum of its proper divisors (170839923).

421130253 is a wasteful number, since it uses less digits than its factorization.

421130253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63044.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 421130253 is about 20521.4583546102. The cubic root of 421130253 is about 749.5584084914.

Adding to 421130253 its reverse (352031124), we get a palindrome (773161377).

The spelling of 421130253 in words is "four hundred twenty-one million, one hundred thirty thousand, two hundred fifty-three".