1243223313323 has 2 divisors, whose sum is σ = 1243223313324. Its totient is φ = 1243223313322.

The previous prime is 1243223313301. The next prime is 1243223313337. The reversal of 1243223313323 is 3233133223421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1243223313323 - 2¹⁸ = 1243223051179 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1243223313323.

It is not a weakly prime, because it can be changed into another prime (1243223313223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621611656661 + 621611656662.

It is an arithmetic number, because the mean of its divisors is an integer number (621611656662).

Almost surely, 2^{1243223313323} is an apocalyptic number.

1243223313323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1243223313323 is an equidigital number, since it uses as much as digits as its factorization.

1243223313323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 32.

Adding to 1243223313323 its reverse (3233133223421), we get a palindrome (4476356536744).

The spelling of 1243223313323 in words is "one trillion, two hundred forty-three billion, two hundred twenty-three million, three hundred thirteen thousand, three hundred twenty-three".