421232233 has 2 divisors, whose sum is σ = 421232234. Its totient is φ = 421232232.

The previous prime is 421232219. The next prime is 421232249. The reversal of 421232233 is 332232124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 281803369 + 139428864 = 16787^2 + 11808^2 .

It is a cyclic number.

It is not a de Polignac number, because 421232233 - 2⁹ = 421231721 is a prime.

It is not a weakly prime, because it can be changed into another prime (421232263) 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 as a sum of consecutive naturals, namely, 210616116 + 210616117.

It is an arithmetic number, because the mean of its divisors is an integer number (210616117).

Almost surely, 2^421232233 is an apocalyptic number.

It is an amenable number.

421232233 is a deficient number, since it is larger than the sum of its proper divisors (1).

421232233 is an equidigital number, since it uses as much as digits as its factorization.

421232233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 22.

The square root of 421232233 is about 20523.9429204040. The cubic root of 421232233 is about 749.6189074278.

Adding to 421232233 its reverse (332232124), we get a palindrome (753464357).

The spelling of 421232233 in words is "four hundred twenty-one million, two hundred thirty-two thousand, two hundred thirty-three".