1001223311323 has 2 divisors, whose sum is σ = 1001223311324. Its totient is φ = 1001223311322.

The previous prime is 1001223311281. The next prime is 1001223311411. The reversal of 1001223311323 is 3231133221001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1001223311323 - 2⁹ = 1001223310811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001223311294 and 1001223311303.

It is not a weakly prime, because it can be changed into another prime (1001223321323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500611655661 + 500611655662.

It is an arithmetic number, because the mean of its divisors is an integer number (500611655662).

Almost surely, 2^{1001223311323} is an apocalyptic number.

1001223311323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001223311323 is an equidigital number, since it uses as much as digits as its factorization.

1001223311323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1001223311323 its reverse (3231133221001), we get a palindrome (4232356532324).

It can be divided in two parts, 10012233 and 11323, that added together give a square (10023556 = 3166²).

The spelling of 1001223311323 in words is "one trillion, one billion, two hundred twenty-three million, three hundred eleven thousand, three hundred twenty-three".