1323332210021 has 2 divisors, whose sum is σ = 1323332210022. Its totient is φ = 1323332210020.

The previous prime is 1323332209987. The next prime is 1323332210023. The reversal of 1323332210021 is 1200122333231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1236902089921 + 86430120100 = 1112161^2 + 293990^2 .

It is a cyclic number.

It is not a de Polignac number, because 1323332210021 - 2⁶ = 1323332209957 is a prime.

Together with 1323332210023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323332210023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661666105010 + 661666105011.

It is an arithmetic number, because the mean of its divisors is an integer number (661666105011).

Almost surely, 2^{1323332210021} is an apocalyptic number.

It is an amenable number.

1323332210021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323332210021 is an equidigital number, since it uses as much as digits as its factorization.

1323332210021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1323332210021 its reverse (1200122333231), we get a palindrome (2523454543252).

The spelling of 1323332210021 in words is "one trillion, three hundred twenty-three billion, three hundred thirty-two million, two hundred ten thousand, twenty-one".