13118821705 has 8 divisors (see below), whose sum is σ = 17173730304. Its totient is φ = 9540961200.

The previous prime is 13118821691. The next prime is 13118821717. The reversal of 13118821705 is 50712881131.

It is a happy number.

13118821705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13118821705 - 2⁹ = 13118821193 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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119261961 + ... + 119262070.

It is an arithmetic number, because the mean of its divisors is an integer number (2146716288).

Almost surely, 2^13118821705 is an apocalyptic number.

It is an amenable number.

13118821705 is a deficient number, since it is larger than the sum of its proper divisors (4054908599).

13118821705 is a wasteful number, since it uses less digits than its factorization.

13118821705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238524047.

The product of its (nonzero) digits is 13440, while the sum is 37.

The spelling of 13118821705 in words is "thirteen billion, one hundred eighteen million, eight hundred twenty-one thousand, seven hundred five".