432040121 has 4 divisors (see below), whose sum is σ = 441232512. Its totient is φ = 422847732.

The previous prime is 432040117. The next prime is 432040123. The reversal of 432040121 is 121040234.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 432040121 - 2² = 432040117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 432040121.

It is not an unprimeable number, because it can be changed into a prime (432040123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4596125 + ... + 4596218.

It is an arithmetic number, because the mean of its divisors is an integer number (110308128).

Almost surely, 2^432040121 is an apocalyptic number.

It is an amenable number.

432040121 is a deficient number, since it is larger than the sum of its proper divisors (9192391).

432040121 is an equidigital number, since it uses as much as digits as its factorization.

432040121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9192390.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 432040121 is about 20785.5748296745. The cubic root of 432040121 is about 755.9760316627.

Adding to 432040121 its reverse (121040234), we get a palindrome (553080355).

The spelling of 432040121 in words is "four hundred thirty-two million, forty thousand, one hundred twenty-one".