432312243421 has 4 divisors (see below), whose sum is σ = 434506722012. Its totient is φ = 430117764832.

The previous prime is 432312243413. The next prime is 432312243457. The reversal of 432312243421 is 124342213234.

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 230917730521 + 201394512900 = 480539^2 + 448770^2 .

It is a cyclic number.

It is not a de Polignac number, because 432312243421 - 2³ = 432312243413 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 (432312243481) 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, 1097239000 + ... + 1097239393.

It is an arithmetic number, because the mean of its divisors is an integer number (108626680503).

Almost surely, 2^432312243421 is an apocalyptic number.

It is an amenable number.

432312243421 is a deficient number, since it is larger than the sum of its proper divisors (2194478591).

432312243421 is a wasteful number, since it uses less digits than its factorization.

432312243421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194478590.

The product of its digits is 27648, while the sum is 31.

Adding to 432312243421 its reverse (124342213234), we get a palindrome (556654456655).

The spelling of 432312243421 in words is "four hundred thirty-two billion, three hundred twelve million, two hundred forty-three thousand, four hundred twenty-one".