1323120223 has 2 divisors, whose sum is σ = 1323120224. Its totient is φ = 1323120222.

The previous prime is 1323120199. The next prime is 1323120229. The reversal of 1323120223 is 3220213231.

It is a strong prime.

It is an emirp because it is prime and its reverse (3220213231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1323120223 - 2²⁵ = 1289565791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1323120223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323120229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661560111 + 661560112.

It is an arithmetic number, because the mean of its divisors is an integer number (661560112).

Almost surely, 2^1323120223 is an apocalyptic number.

1323120223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323120223 is an equidigital number, since it uses as much as digits as its factorization.

1323120223 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 19.

The square root of 1323120223 is about 36374.7195590564. The cubic root of 1323120223 is about 1097.8249646611.

Adding to 1323120223 its reverse (3220213231), we get a palindrome (4543333454).

The spelling of 1323120223 in words is "one billion, three hundred twenty-three million, one hundred twenty thousand, two hundred twenty-three".