11011322321 has 4 divisors (see below), whose sum is σ = 11060700672. Its totient is φ = 10961943972.

The previous prime is 11011322303. The next prime is 11011322363. The reversal of 11011322321 is 12322311011.

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 11011322321 - 2¹⁰ = 11011321297 is a prime.

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 11011322321.

It is not an unprimeable number, because it can be changed into a prime (11011322221) 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, 24688841 + ... + 24689286.

It is an arithmetic number, because the mean of its divisors is an integer number (2765175168).

Almost surely, 2^11011322321 is an apocalyptic number.

It is an amenable number.

11011322321 is a deficient number, since it is larger than the sum of its proper divisors (49378351).

11011322321 is an equidigital number, since it uses as much as digits as its factorization.

11011322321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49378350.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11011322321 its reverse (12322311011), we get a palindrome (23333633332).

The spelling of 11011322321 in words is "eleven billion, eleven million, three hundred twenty-two thousand, three hundred twenty-one".