1002221323 has 2 divisors, whose sum is σ = 1002221324. Its totient is φ = 1002221322.

The previous prime is 1002221321. The next prime is 1002221327. The reversal of 1002221323 is 3231222001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1002221323 - 2¹ = 1002221321 is a prime.

Together with 1002221321, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1002221297 and 1002221306.

It is not a weakly prime, because it can be changed into another prime (1002221321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501110661 + 501110662.

It is an arithmetic number, because the mean of its divisors is an integer number (501110662).

Almost surely, 2^1002221323 is an apocalyptic number.

1002221323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002221323 is an equidigital number, since it uses as much as digits as its factorization.

1002221323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1002221323 is about 31657.8793193732. The cubic root of 1002221323 is about 1000.7398934227.

Adding to 1002221323 its reverse (3231222001), we get a palindrome (4233443324).

The spelling of 1002221323 in words is "one billion, two million, two hundred twenty-one thousand, three hundred twenty-three".