432115321 has 12 divisors (see below), whose sum is σ = 485081856. Its totient is φ = 384468920.

The previous prime is 432115303. The next prime is 432115331. The reversal of 432115321 is 123511234.

It is a happy number.

It is not a de Polignac number, because 432115321 - 2²⁵ = 398560889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 432115292 and 432115301.

It is not an unprimeable number, because it can be changed into a prime (432115331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32305 + ... + 43678.

It is an arithmetic number, because the mean of its divisors is an integer number (40423488).

Almost surely, 2^432115321 is an apocalyptic number.

It is an amenable number.

432115321 is a deficient number, since it is larger than the sum of its proper divisors (52966535).

432115321 is a wasteful number, since it uses less digits than its factorization.

432115321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76052 (or 76041 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 432115321 is about 20787.3836978106. The cubic root of 432115321 is about 756.0198903205.

Adding to 432115321 its reverse (123511234), we get a palindrome (555626555).

The spelling of 432115321 in words is "four hundred thirty-two million, one hundred fifteen thousand, three hundred twenty-one".