1323002302021 has 2 divisors, whose sum is σ = 1323002302022. Its totient is φ = 1323002302020.

The previous prime is 1323002302019. The next prime is 1323002302067. The reversal of 1323002302021 is 1202032003231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1322007845796 + 994456225 = 1149786^2 + 31535^2 .

It is a cyclic number.

It is not a de Polignac number, because 1323002302021 - 2¹ = 1323002302019 is a prime.

Together with 1323002302019, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1323002302021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323002302081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661501151010 + 661501151011.

It is an arithmetic number, because the mean of its divisors is an integer number (661501151011).

Almost surely, 2^{1323002302021} is an apocalyptic number.

It is an amenable number.

1323002302021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323002302021 is an equidigital number, since it uses as much as digits as its factorization.

1323002302021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 1323002302021 its reverse (1202032003231), we get a palindrome (2525034305252).

It can be divided in two parts, 132300 and 2302021, that added together give a triangular number (2434321 = T₂₂₀₆).

The spelling of 1323002302021 in words is "one trillion, three hundred twenty-three billion, two million, three hundred two thousand, twenty-one".