12079209911 has 4 divisors (see below), whose sum is σ = 12081014400. Its totient is φ = 12077405424.

The previous prime is 12079209893. The next prime is 12079209941. The reversal of 12079209911 is 11990297021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12079209911 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 (12079209941) 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, 892166 + ... + 905603.

It is an arithmetic number, because the mean of its divisors is an integer number (3020253600).

Almost surely, 2^12079209911 is an apocalyptic number.

12079209911 is a deficient number, since it is larger than the sum of its proper divisors (1804489).

12079209911 is an equidigital number, since it uses as much as digits as its factorization.

12079209911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804488.

The product of its (nonzero) digits is 20412, while the sum is 41.

The spelling of 12079209911 in words is "twelve billion, seventy-nine million, two hundred nine thousand, nine hundred eleven".