1323022203121 has 2 divisors, whose sum is σ = 1323022203122. Its totient is φ = 1323022203120.

The previous prime is 1323022203103. The next prime is 1323022203133. The reversal of 1323022203121 is 1213022203231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 706112493025 + 616909710096 = 840305^2 + 785436^2 .

It is an emirp because it is prime and its reverse (1213022203231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1323022203121 - 2⁹ = 1323022202609 is a prime.

It is a super-2 number, since 2×1323022203121² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1323022203092 and 1323022203101.

It is not a weakly prime, because it can be changed into another prime (1323022203821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661511101560 + 661511101561.

It is an arithmetic number, because the mean of its divisors is an integer number (661511101561).

Almost surely, 2^{1323022203121} is an apocalyptic number.

It is an amenable number.

1323022203121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323022203121 is an equidigital number, since it uses as much as digits as its factorization.

1323022203121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1323022203121 its reverse (1213022203231), we get a palindrome (2536044406352).

The spelling of 1323022203121 in words is "one trillion, three hundred twenty-three billion, twenty-two million, two hundred three thousand, one hundred twenty-one".