1021323113303 has 4 divisors (see below), whose sum is σ = 1027226715288. Its totient is φ = 1015419511320.

The previous prime is 1021323113297. The next prime is 1021323113341. The reversal of 1021323113303 is 3033113231201.

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 1021323113303 - 2¹⁰ = 1021323112279 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 (1021323113353) 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, 2951800733 + ... + 2951801078.

It is an arithmetic number, because the mean of its divisors is an integer number (256806678822).

Almost surely, 2^{1021323113303} is an apocalyptic number.

1021323113303 is a deficient number, since it is larger than the sum of its proper divisors (5903601985).

1021323113303 is an equidigital number, since it uses as much as digits as its factorization.

1021323113303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5903601984.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 1021323113303 its reverse (3033113231201), we get a palindrome (4054436344504).

The spelling of 1021323113303 in words is "one trillion, twenty-one billion, three hundred twenty-three million, one hundred thirteen thousand, three hundred three".