12071322079 has 4 divisors (see below), whose sum is σ = 12706654840. Its totient is φ = 11435989320.

The previous prime is 12071322071. The next prime is 12071322089. The reversal of 12071322079 is 97022317021.

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

It is a cyclic number.

It is not a de Polignac number, because 12071322079 - 2³ = 12071322071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12071322071) by changing a digit.

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, 317666352 + ... + 317666389.

It is an arithmetic number, because the mean of its divisors is an integer number (3176663710).

Almost surely, 2^12071322079 is an apocalyptic number.

12071322079 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12071322079 is a deficient number, since it is larger than the sum of its proper divisors (635332761).

12071322079 is an equidigital number, since it uses as much as digits as its factorization.

12071322079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635332760.

The product of its (nonzero) digits is 10584, while the sum is 34.

The spelling of 12071322079 in words is "twelve billion, seventy-one million, three hundred twenty-two thousand, seventy-nine".