432121323 has 16 divisors (see below), whose sum is σ = 589147776. Its totient is φ = 281660160.

The previous prime is 432121301. The next prime is 432121387. The reversal of 432121323 is 323121234.

It is not a de Polignac number, because 432121323 - 2²⁵ = 398566891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 432121323.

It is not an unprimeable number, because it can be changed into a prime (432121523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15208 + ... + 33098.

It is an arithmetic number, because the mean of its divisors is an integer number (36821736).

Almost surely, 2^432121323 is an apocalyptic number.

432121323 is a deficient number, since it is larger than the sum of its proper divisors (157026453).

432121323 is a wasteful number, since it uses less digits than its factorization.

432121323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18074.

The product of its digits is 864, while the sum is 21.

The square root of 432121323 is about 20787.5280637213. The cubic root of 432121323 is about 756.0233906287.

Adding to 432121323 its reverse (323121234), we get a palindrome (755242557).

The spelling of 432121323 in words is "four hundred thirty-two million, one hundred twenty-one thousand, three hundred twenty-three".