10911656321 has 4 divisors (see below), whose sum is σ = 10963370544. Its totient is φ = 10859942100.

The previous prime is 10911656309. The next prime is 10911656383. The reversal of 10911656321 is 12365611901.

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 10911656321 - 2⁶ = 10911656257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10911656621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25856795 + ... + 25857216.

It is an arithmetic number, because the mean of its divisors is an integer number (2740842636).

Almost surely, 2^10911656321 is an apocalyptic number.

It is an amenable number.

10911656321 is a deficient number, since it is larger than the sum of its proper divisors (51714223).

10911656321 is an equidigital number, since it uses as much as digits as its factorization.

10911656321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51714222.

The product of its (nonzero) digits is 9720, while the sum is 35.

The spelling of 10911656321 in words is "ten billion, nine hundred eleven million, six hundred fifty-six thousand, three hundred twenty-one".