423336121 has 4 divisors (see below), whose sum is σ = 455900452. Its totient is φ = 390771792.

The previous prime is 423336119. The next prime is 423336127. The reversal of 423336121 is 121633324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 74580496 + 348755625 = 8636^2 + 18675^2 .

It is a cyclic number.

It is not a de Polignac number, because 423336121 - 2¹ = 423336119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423336127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16282146 + ... + 16282171.

It is an arithmetic number, because the mean of its divisors is an integer number (113975113).

Almost surely, 2^423336121 is an apocalyptic number.

It is an amenable number.

423336121 is a deficient number, since it is larger than the sum of its proper divisors (32564331).

423336121 is a wasteful number, since it uses less digits than its factorization.

423336121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32564330.

The product of its digits is 2592, while the sum is 25.

The square root of 423336121 is about 20575.1335597123. The cubic root of 423336121 is about 750.8648518066.

Adding to 423336121 its reverse (121633324), we get a palindrome (544969445).

The spelling of 423336121 in words is "four hundred twenty-three million, three hundred thirty-six thousand, one hundred twenty-one".