43230121 has 16 divisors (see below), whose sum is σ = 48117888. Its totient is φ = 38512000.

The previous prime is 43230119. The next prime is 43230157. The reversal of 43230121 is 12103234.

It is a happy number.

43230121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 43230121 - 2¹ = 43230119 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43230095 and 43230104.

It is not an unprimeable number, because it can be changed into a prime (43230101) 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 15 ways as a sum of consecutive naturals, for example, 185421 + ... + 185653.

It is an arithmetic number, because the mean of its divisors is an integer number (3007368).

Almost surely, 2^43230121 is an apocalyptic number.

It is an amenable number.

43230121 is a deficient number, since it is larger than the sum of its proper divisors (4887767).

43230121 is a wasteful number, since it uses less digits than its factorization.

43230121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 43230121 is about 6574.9616728921. The cubic root of 43230121 is about 350.9636599526.

Adding to 43230121 its reverse (12103234), we get a palindrome (55333355).

The spelling of 43230121 in words is "forty-three million, two hundred thirty thousand, one hundred twenty-one".