432321013 has 4 divisors (see below), whose sum is σ = 432843340. Its totient is φ = 431798688.

The previous prime is 432321007. The next prime is 432321017. The reversal of 432321013 is 310123234.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 114875524 + 317445489 = 10718^2 + 17817^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-432321013 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 (432321017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259920 + ... + 261577.

It is an arithmetic number, because the mean of its divisors is an integer number (108210835).

Almost surely, 2^432321013 is an apocalyptic number.

It is an amenable number.

432321013 is a deficient number, since it is larger than the sum of its proper divisors (522327).

432321013 is an equidigital number, since it uses as much as digits as its factorization.

432321013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522326.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 432321013 is about 20792.3306293450. The cubic root of 432321013 is about 756.1398294262.

Adding to 432321013 its reverse (310123234), we get a palindrome (742444247).

The spelling of 432321013 in words is "four hundred thirty-two million, three hundred twenty-one thousand, thirteen".