432121223 has 4 divisors (see below), whose sum is σ = 432252120. Its totient is φ = 431990328.

The previous prime is 432121213. The next prime is 432121229. The reversal of 432121223 is 322121234.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322121234 = 2 ⋅161060617.

It is a cyclic number.

It is not a de Polignac number, because 432121223 - 2⁶ = 432121159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 432121195 and 432121204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (432121229) 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, 60365 + ... + 67142.

It is an arithmetic number, because the mean of its divisors is an integer number (108063030).

Almost surely, 2^432121223 is an apocalyptic number.

432121223 is a deficient number, since it is larger than the sum of its proper divisors (130897).

432121223 is a wasteful number, since it uses less digits than its factorization.

432121223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130896.

The product of its digits is 576, while the sum is 20.

The square root of 432121223 is about 20787.5256584328. The cubic root of 432121223 is about 756.0233323099.

Adding to 432121223 its reverse (322121234), we get a palindrome (754242457).

The spelling of 432121223 in words is "four hundred thirty-two million, one hundred twenty-one thousand, two hundred twenty-three".