423340121 has 8 divisors (see below), whose sum is σ = 445821600. Its totient is φ = 400878720.

The previous prime is 423340091. The next prime is 423340133. The reversal of 423340121 is 121043324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 423340121 - 2¹⁰ = 423339097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423340093 and 423340102.

It is not an unprimeable number, because it can be changed into a prime (423340321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59945 + ... + 66633.

It is an arithmetic number, because the mean of its divisors is an integer number (55727700).

Almost surely, 2^423340121 is an apocalyptic number.

It is an amenable number.

423340121 is a deficient number, since it is larger than the sum of its proper divisors (22481479).

423340121 is a wasteful number, since it uses less digits than its factorization.

423340121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10039.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 423340121 is about 20575.2307641980. The cubic root of 423340121 is about 750.8672167123.

Adding to 423340121 its reverse (121043324), we get a palindrome (544383445).

The spelling of 423340121 in words is "four hundred twenty-three million, three hundred forty thousand, one hundred twenty-one".