423221353 has 2 divisors, whose sum is σ = 423221354. Its totient is φ = 423221352.

The previous prime is 423221347. The next prime is 423221419. The reversal of 423221353 is 353122324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 420947289 + 2274064 = 20517^2 + 1508^2 .

It is a cyclic number.

It is not a de Polignac number, because 423221353 - 2⁹ = 423220841 is a prime.

It is not a weakly prime, because it can be changed into another prime (423221153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211610676 + 211610677.

It is an arithmetic number, because the mean of its divisors is an integer number (211610677).

Almost surely, 2^423221353 is an apocalyptic number.

It is an amenable number.

423221353 is a deficient number, since it is larger than the sum of its proper divisors (1).

423221353 is an equidigital number, since it uses as much as digits as its factorization.

423221353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 25.

The square root of 423221353 is about 20572.3443729683. The cubic root of 423221353 is about 750.7969915874.

Adding to 423221353 its reverse (353122324), we get a palindrome (776343677).

The spelling of 423221353 in words is "four hundred twenty-three million, two hundred twenty-one thousand, three hundred fifty-three".