1322123321 has 2 divisors, whose sum is σ = 1322123322. Its totient is φ = 1322123320.

The previous prime is 1322123293. The next prime is 1322123323. The reversal of 1322123321 is 1233212231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 713958400 + 608164921 = 26720^2 + 24661^2 .

It is a cyclic number.

It is not a de Polignac number, because 1322123321 - 2¹⁴ = 1322106937 is a prime.

Together with 1322123323, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1322123293 and 1322123302.

It is not a weakly prime, because it can be changed into another prime (1322123323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661061660 + 661061661.

It is an arithmetic number, because the mean of its divisors is an integer number (661061661).

Almost surely, 2^1322123321 is an apocalyptic number.

It is an amenable number.

1322123321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322123321 is an equidigital number, since it uses as much as digits as its factorization.

1322123321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 20.

The square root of 1322123321 is about 36361.0137509943. The cubic root of 1322123321 is about 1097.5491774568.

Adding to 1322123321 its reverse (1233212231), we get a palindrome (2555335552).

The spelling of 1322123321 in words is "one billion, three hundred twenty-two million, one hundred twenty-three thousand, three hundred twenty-one".