1023321313303 has 4 divisors (see below), whose sum is σ = 1023323439600. Its totient is φ = 1023319187008.

The previous prime is 1023321313241. The next prime is 1023321313327. The reversal of 1023321313303 is 3033131233201.

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 1023321313303 - 2²¹ = 1023319216151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023321313363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40998 + ... + 1431196.

It is an arithmetic number, because the mean of its divisors is an integer number (255830859900).

Almost surely, 2^{1023321313303} is an apocalyptic number.

1023321313303 is a deficient number, since it is larger than the sum of its proper divisors (2126297).

1023321313303 is an equidigital number, since it uses as much as digits as its factorization.

1023321313303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126296.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 1023321313303 its reverse (3033131233201), we get a palindrome (4056452546504).

The spelling of 1023321313303 in words is "one trillion, twenty-three billion, three hundred twenty-one million, three hundred thirteen thousand, three hundred three".