1323102203021 has 2 divisors, whose sum is σ = 1323102203022. Its totient is φ = 1323102203020.

The previous prime is 1323102202957. The next prime is 1323102203057. The reversal of 1323102203021 is 1203022013231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 943590760996 + 379511442025 = 971386^2 + 616045^2 .

It is an emirp because it is prime and its reverse (1203022013231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1323102203021 - 2⁶ = 1323102202957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1323102202984 and 1323102203002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323102203321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661551101510 + 661551101511.

It is an arithmetic number, because the mean of its divisors is an integer number (661551101511).

Almost surely, 2^{1323102203021} is an apocalyptic number.

It is an amenable number.

1323102203021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323102203021 is an equidigital number, since it uses as much as digits as its factorization.

1323102203021 is an evil number, because the sum of its binary digits is even.

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

Adding to 1323102203021 its reverse (1203022013231), we get a palindrome (2526124216252).

The spelling of 1323102203021 in words is "one trillion, three hundred twenty-three billion, one hundred two million, two hundred three thousand, twenty-one".