1320113221023 has 64 divisors (see below), whose sum is σ = 1870755840000. Its totient is φ = 826333073280.

The previous prime is 1320113220997. The next prime is 1320113221033. The reversal of 1320113221023 is 3201223110231.

It is not a de Polignac number, because 1320113221023 - 2⁹ = 1320113220511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320113221033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 862254768 + ... + 862256298.

It is an arithmetic number, because the mean of its divisors is an integer number (29230560000).

Almost surely, 2^{1320113221023} is an apocalyptic number.

1320113221023 is a deficient number, since it is larger than the sum of its proper divisors (550642618977).

1320113221023 is a wasteful number, since it uses less digits than its factorization.

1320113221023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2452.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1320113221023 its reverse (3201223110231), we get a palindrome (4521336331254).

The spelling of 1320113221023 in words is "one trillion, three hundred twenty billion, one hundred thirteen million, two hundred twenty-one thousand, twenty-three".