11321221330013 has 4 divisors (see below), whose sum is σ = 12938538662880. Its totient is φ = 9703903997148.

The previous prime is 11321221329989. The next prime is 11321221330037. The reversal of 11321221330013 is 31003312212311.

11321221330013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an interprime number because it is at equal distance from previous prime (11321221329989) and next prime (11321221330037).

It is a cyclic number.

It is not a de Polignac number, because 11321221330013 - 2³² = 11316926362717 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 (11321221330813) 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, 808658666423 + ... + 808658666436.

It is an arithmetic number, because the mean of its divisors is an integer number (3234634665720).

Almost surely, 2^{11321221330013} is an apocalyptic number.

It is an amenable number.

11321221330013 is a deficient number, since it is larger than the sum of its proper divisors (1617317332867).

11321221330013 is an equidigital number, since it uses as much as digits as its factorization.

11321221330013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617317332866.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 11321221330013 its reverse (31003312212311), we get a palindrome (42324533542324).

The spelling of 11321221330013 in words is "eleven trillion, three hundred twenty-one billion, two hundred twenty-one million, three hundred thirty thousand, thirteen".