1001220323323 has 4 divisors (see below), whose sum is σ = 1092240352728. Its totient is φ = 910200293920.

The previous prime is 1001220323297. The next prime is 1001220323333. The reversal of 1001220323323 is 3233230221001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1001220323323 - 2²⁹ = 1000683452411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001220323294 and 1001220323303.

It is not an unprimeable number, because it can be changed into a prime (1001220323333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45510014686 + ... + 45510014707.

It is an arithmetic number, because the mean of its divisors is an integer number (273060088182).

Almost surely, 2^{1001220323323} is an apocalyptic number.

1001220323323 is a deficient number, since it is larger than the sum of its proper divisors (91020029405).

1001220323323 is an equidigital number, since it uses as much as digits as its factorization.

1001220323323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91020029404.

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

Adding to 1001220323323 its reverse (3233230221001), we get a palindrome (4234450544324).

The spelling of 1001220323323 in words is "one trillion, one billion, two hundred twenty million, three hundred twenty-three thousand, three hundred twenty-three".