423120233 has 4 divisors (see below), whose sum is σ = 427002180. Its totient is φ = 419238288.

The previous prime is 423120221. The next prime is 423120281. The reversal of 423120233 is 332021324.

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 308458969 + 114661264 = 17563^2 + 10708^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423120233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423120283) 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, 1940810 + ... + 1941027.

It is an arithmetic number, because the mean of its divisors is an integer number (106750545).

Almost surely, 2^423120233 is an apocalyptic number.

It is an amenable number.

423120233 is a deficient number, since it is larger than the sum of its proper divisors (3881947).

423120233 is a wasteful number, since it uses less digits than its factorization.

423120233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3881946.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 423120233 is about 20569.8865577815. The cubic root of 423120233 is about 750.7371910137.

Adding to 423120233 its reverse (332021324), we get a palindrome (755141557).

The spelling of 423120233 in words is "four hundred twenty-three million, one hundred twenty thousand, two hundred thirty-three".