11520110555 has 4 divisors (see below), whose sum is σ = 13824132672. Its totient is φ = 9216088440.

The previous prime is 11520110551. The next prime is 11520110599. The reversal of 11520110555 is 55501102511.

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

It is not a de Polignac number, because 11520110555 - 2² = 11520110551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11520110551) by changing a digit.

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, 1152011051 + ... + 1152011060.

It is an arithmetic number, because the mean of its divisors is an integer number (3456033168).

Almost surely, 2^11520110555 is an apocalyptic number.

11520110555 is a deficient number, since it is larger than the sum of its proper divisors (2304022117).

11520110555 is an equidigital number, since it uses as much as digits as its factorization.

11520110555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304022116.

The product of its (nonzero) digits is 1250, while the sum is 26.

The spelling of 11520110555 in words is "eleven billion, five hundred twenty million, one hundred ten thousand, five hundred fifty-five".