1423333321 has 2 divisors, whose sum is σ = 1423333322. Its totient is φ = 1423333320.

The previous prime is 1423333319. The next prime is 1423333333. The reversal of 1423333321 is 1233333241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1334879296 + 88454025 = 36536^2 + 9405^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423333321 - 2¹ = 1423333319 is a prime.

Together with 1423333319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1423333361) 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, 711666660 + 711666661.

It is an arithmetic number, because the mean of its divisors is an integer number (711666661).

Almost surely, 2^1423333321 is an apocalyptic number.

It is an amenable number.

1423333321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423333321 is an equidigital number, since it uses as much as digits as its factorization.

1423333321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 25.

The square root of 1423333321 is about 37727.0900150012. The cubic root of 1423333321 is about 1124.8696661521.

Adding to 1423333321 its reverse (1233333241), we get a palindrome (2656666562).

The spelling of 1423333321 in words is "one billion, four hundred twenty-three million, three hundred thirty-three thousand, three hundred twenty-one".