423030121 has 4 divisors (see below), whose sum is σ = 423619200. Its totient is φ = 422441044.

The previous prime is 423030089. The next prime is 423030131. The reversal of 423030121 is 121030324.

It is a happy number.

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 423030121 - 2⁵ = 423030089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423030095 and 423030104.

It is not an unprimeable number, because it can be changed into a prime (423030131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293461 + ... + 294898.

It is an arithmetic number, because the mean of its divisors is an integer number (105904800).

Almost surely, 2^423030121 is an apocalyptic number.

It is an amenable number.

423030121 is a deficient number, since it is larger than the sum of its proper divisors (589079).

423030121 is an equidigital number, since it uses as much as digits as its factorization.

423030121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589078.

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

The square root of 423030121 is about 20567.6960547359. The cubic root of 423030121 is about 750.6838923469.

Adding to 423030121 its reverse (121030324), we get a palindrome (544060445).

The spelling of 423030121 in words is "four hundred twenty-three million, thirty thousand, one hundred twenty-one".