1323253223213 has 2 divisors, whose sum is σ = 1323253223214. Its totient is φ = 1323253223212.

The previous prime is 1323253223119. The next prime is 1323253223221. The reversal of 1323253223213 is 3123223523231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 913471443049 + 409781780164 = 955757^2 + 640142^2 .

It is a cyclic number.

It is not a de Polignac number, because 1323253223213 - 2²² = 1323249028909 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1323253223213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323253223263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661626611606 + 661626611607.

It is an arithmetic number, because the mean of its divisors is an integer number (661626611607).

Almost surely, 2^{1323253223213} is an apocalyptic number.

It is an amenable number.

1323253223213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323253223213 is an equidigital number, since it uses as much as digits as its factorization.

1323253223213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 32.

Adding to 1323253223213 its reverse (3123223523231), we get a palindrome (4446476746444).

The spelling of 1323253223213 in words is "one trillion, three hundred twenty-three billion, two hundred fifty-three million, two hundred twenty-three thousand, two hundred thirteen".