421233233 has 4 divisors (see below), whose sum is σ = 422143488. Its totient is φ = 420322980.

The previous prime is 421233193. The next prime is 421233269. The reversal of 421233233 is 332332124.

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 421233233 - 2²⁰ = 420184657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421233199 and 421233208.

It is not an unprimeable number, because it can be changed into a prime (421233283) 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, 454433 + ... + 455358.

It is an arithmetic number, because the mean of its divisors is an integer number (105535872).

Almost surely, 2^421233233 is an apocalyptic number.

It is an amenable number.

421233233 is a deficient number, since it is larger than the sum of its proper divisors (910255).

421233233 is an equidigital number, since it uses as much as digits as its factorization.

421233233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910254.

The product of its digits is 2592, while the sum is 23.

The square root of 421233233 is about 20523.9672821801. The cubic root of 421233233 is about 749.6195006226.

Adding to 421233233 its reverse (332332124), we get a palindrome (753565357).

The spelling of 421233233 in words is "four hundred twenty-one million, two hundred thirty-three thousand, two hundred thirty-three".