11123630642665 has 4 divisors (see below), whose sum is σ = 13348356771204. Its totient is φ = 8898904514128.

The previous prime is 11123630642653. The next prime is 11123630642701. The reversal of 11123630642665 is 56624603632111.

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 7256795496336 + 3866835146329 = 2693844^2 + 1966427^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11123630642665 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1112363064262 + ... + 1112363064271.

It is an arithmetic number, because the mean of its divisors is an integer number (3337089192801).

Almost surely, 2^{11123630642665} is an apocalyptic number.

It is an amenable number.

11123630642665 is a deficient number, since it is larger than the sum of its proper divisors (2224726128539).

11123630642665 is an equidigital number, since it uses as much as digits as its factorization.

11123630642665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224726128538.

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 11123630642665 in words is "eleven trillion, one hundred twenty-three billion, six hundred thirty million, six hundred forty-two thousand, six hundred sixty-five".