11121318755 has 4 divisors (see below), whose sum is σ = 13345582512. Its totient is φ = 8897055000.

The previous prime is 11121318739. The next prime is 11121318763. The reversal of 11121318755 is 55781312111.

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

It is not a de Polignac number, because 11121318755 - 2⁴ = 11121318739 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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1112131871 + ... + 1112131880.

It is an arithmetic number, because the mean of its divisors is an integer number (3336395628).

Almost surely, 2^11121318755 is an apocalyptic number.

11121318755 is a deficient number, since it is larger than the sum of its proper divisors (2224263757).

11121318755 is an equidigital number, since it uses as much as digits as its factorization.

11121318755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224263756.

The product of its digits is 8400, while the sum is 35.

The spelling of 11121318755 in words is "eleven billion, one hundred twenty-one million, three hundred eighteen thousand, seven hundred fifty-five".