1223321231233 has 2 divisors, whose sum is σ = 1223321231234. Its totient is φ = 1223321231232.

The previous prime is 1223321231227. The next prime is 1223321231267. The reversal of 1223321231233 is 3321321233221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1005333091569 + 217988139664 = 1002663^2 + 466892^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223321231233 is a prime.

It is not a weakly prime, because it can be changed into another prime (1223321231273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611660615616 + 611660615617.

It is an arithmetic number, because the mean of its divisors is an integer number (611660615617).

Almost surely, 2^{1223321231233} is an apocalyptic number.

It is an amenable number.

1223321231233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223321231233 is an equidigital number, since it uses as much as digits as its factorization.

1223321231233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 28.

Adding to 1223321231233 its reverse (3321321233221), we get a palindrome (4544642464454).

The spelling of 1223321231233 in words is "one trillion, two hundred twenty-three billion, three hundred twenty-one million, two hundred thirty-one thousand, two hundred thirty-three".