1021332322013 has 4 divisors (see below), whose sum is σ = 1065738075168. Its totient is φ = 976926568860.

The previous prime is 1021332322007. The next prime is 1021332322091. The reversal of 1021332322013 is 3102232331201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1021332322013 - 2¹⁰ = 1021332320989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 44405753131 = 1021332322013 / (1 + 0 + 2 + 1 + 3 + 3 + 2 + 3 + 2 + 2 + 0 + 1 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1021332322013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021332322613) 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, 22202876543 + ... + 22202876588.

It is an arithmetic number, because the mean of its divisors is an integer number (266434518792).

Almost surely, 2^{1021332322013} is an apocalyptic number.

It is an amenable number.

1021332322013 is a deficient number, since it is larger than the sum of its proper divisors (44405753155).

1021332322013 is an equidigital number, since it uses as much as digits as its factorization.

1021332322013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44405753154.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1021332322013 its reverse (3102232331201), we get a palindrome (4123564653214).

The spelling of 1021332322013 in words is "one trillion, twenty-one billion, three hundred thirty-two million, three hundred twenty-two thousand, thirteen".