11043321321 has 8 divisors (see below), whose sum is σ = 14724914464. Its totient is φ = 7361971200.

The previous prime is 11043321319. The next prime is 11043321337. The reversal of 11043321321 is 12312334011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11043321321 - 2¹ = 11043321319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11043323321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140850 + ... + 204756.

It is an arithmetic number, because the mean of its divisors is an integer number (1840614308).

Almost surely, 2^11043321321 is an apocalyptic number.

It is an amenable number.

11043321321 is a deficient number, since it is larger than the sum of its proper divisors (3681593143).

11043321321 is an equidigital number, since it uses as much as digits as its factorization.

11043321321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121511.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 11043321321 its reverse (12312334011), we get a palindrome (23355655332).

The spelling of 11043321321 in words is "eleven billion, forty-three million, three hundred twenty-one thousand, three hundred twenty-one".