12107661823 has 4 divisors (see below), whose sum is σ = 12180162960. Its totient is φ = 12035160688.

The previous prime is 12107661793. The next prime is 12107661829. The reversal of 12107661823 is 32816670121.

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 12107661823 - 2¹³ = 12107653631 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 (12107661829) 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, 36250318 + ... + 36250651.

It is an arithmetic number, because the mean of its divisors is an integer number (3045040740).

Almost surely, 2^12107661823 is an apocalyptic number.

12107661823 is a deficient number, since it is larger than the sum of its proper divisors (72501137).

12107661823 is an equidigital number, since it uses as much as digits as its factorization.

12107661823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72501136.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 12107661823 in words is "twelve billion, one hundred seven million, six hundred sixty-one thousand, eight hundred twenty-three".