12099805843 has 2 divisors, whose sum is σ = 12099805844. Its totient is φ = 12099805842.

The previous prime is 12099805841. The next prime is 12099805849. The reversal of 12099805843 is 34850899021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12099805843 - 2¹ = 12099805841 is a prime.

Together with 12099805841, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12099805841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6049902921 + 6049902922.

It is an arithmetic number, because the mean of its divisors is an integer number (6049902922).

Almost surely, 2^12099805843 is an apocalyptic number.

12099805843 is a deficient number, since it is larger than the sum of its proper divisors (1).

12099805843 is an equidigital number, since it uses as much as digits as its factorization.

12099805843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 12099805843 in words is "twelve billion, ninety-nine million, eight hundred five thousand, eight hundred forty-three".