430542213521 has 4 divisors (see below), whose sum is σ = 492048244032. Its totient is φ = 369036183012.

The previous prime is 430542213421. The next prime is 430542213551. The reversal of 430542213521 is 125312245034.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 430542213521 - 2¹⁸ = 430541951377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (430542213551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30753015245 + ... + 30753015258.

It is an arithmetic number, because the mean of its divisors is an integer number (123012061008).

Almost surely, 2^430542213521 is an apocalyptic number.

It is an amenable number.

430542213521 is a deficient number, since it is larger than the sum of its proper divisors (61506030511).

430542213521 is an equidigital number, since it uses as much as digits as its factorization.

430542213521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61506030510.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 430542213521 its reverse (125312245034), we get a palindrome (555854458555).

The spelling of 430542213521 in words is "four hundred thirty billion, five hundred forty-two million, two hundred thirteen thousand, five hundred twenty-one".