11501334321 has 4 divisors (see below), whose sum is σ = 15335112432. Its totient is φ = 7667556212.

The previous prime is 11501334311. The next prime is 11501334349. The reversal of 11501334321 is 12343310511.

11501334321 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 a cyclic number.

It is not a de Polignac number, because 11501334321 - 2¹¹ = 11501332273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11501334291 and 11501334300.

It is not an unprimeable number, because it can be changed into a prime (11501334311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1916889051 + ... + 1916889056.

It is an arithmetic number, because the mean of its divisors is an integer number (3833778108).

Almost surely, 2^11501334321 is an apocalyptic number.

It is an amenable number.

11501334321 is a deficient number, since it is larger than the sum of its proper divisors (3833778111).

11501334321 is an equidigital number, since it uses as much as digits as its factorization.

11501334321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3833778110.

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 11501334321 its reverse (12343310511), we get a palindrome (23844644832).

The spelling of 11501334321 in words is "eleven billion, five hundred one million, three hundred thirty-four thousand, three hundred twenty-one".