1001323220323 has 2 divisors, whose sum is σ = 1001323220324. Its totient is φ = 1001323220322.

The previous prime is 1001323220321. The next prime is 1001323220377. The reversal of 1001323220323 is 3230223231001.

1001323220323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1001323220323 - 2¹ = 1001323220321 is a prime.

Together with 1001323220321, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1001323220294 and 1001323220303.

It is not a weakly prime, because it can be changed into another prime (1001323220321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500661610161 + 500661610162.

It is an arithmetic number, because the mean of its divisors is an integer number (500661610162).

Almost surely, 2^{1001323220323} is an apocalyptic number.

1001323220323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001323220323 is an equidigital number, since it uses as much as digits as its factorization.

1001323220323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 1001323220323 its reverse (3230223231001), we get a palindrome (4231546451324).

The spelling of 1001323220323 in words is "one trillion, one billion, three hundred twenty-three million, two hundred twenty thousand, three hundred twenty-three".