11109324761 has 4 divisors (see below), whose sum is σ = 11109591732. Its totient is φ = 11109057792.

The previous prime is 11109324749. The next prime is 11109324767. The reversal of 11109324761 is 16742390111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9025950025 + 2083374736 = 95005^2 + 45644^2 .

It is a cyclic number.

It is not a de Polignac number, because 11109324761 - 2¹⁴ = 11109308377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11109324767) 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 3 ways as a sum of consecutive naturals, for example, 56120 + ... + 159273.

It is an arithmetic number, because the mean of its divisors is an integer number (2777397933).

Almost surely, 2^11109324761 is an apocalyptic number.

It is an amenable number.

11109324761 is a deficient number, since it is larger than the sum of its proper divisors (266971).

11109324761 is an equidigital number, since it uses as much as digits as its factorization.

11109324761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266970.

The product of its (nonzero) digits is 9072, while the sum is 35.

The spelling of 11109324761 in words is "eleven billion, one hundred nine million, three hundred twenty-four thousand, seven hundred sixty-one".