12179320355 has 4 divisors (see below), whose sum is σ = 14615184432. Its totient is φ = 9743456280.

The previous prime is 12179320343. The next prime is 12179320379. The reversal of 12179320355 is 55302397121.

It is a happy number.

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

It is not a de Polignac number, because 12179320355 - 2⁴ = 12179320339 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, 1217932031 + ... + 1217932040.

It is an arithmetic number, because the mean of its divisors is an integer number (3653796108).

Almost surely, 2^12179320355 is an apocalyptic number.

12179320355 is a deficient number, since it is larger than the sum of its proper divisors (2435864077).

12179320355 is an equidigital number, since it uses as much as digits as its factorization.

12179320355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2435864076.

The product of its (nonzero) digits is 56700, while the sum is 38.

The spelling of 12179320355 in words is "twelve billion, one hundred seventy-nine million, three hundred twenty thousand, three hundred fifty-five".