319808120111 has 2 divisors, whose sum is σ = 319808120112. Its totient is φ = 319808120110.

The previous prime is 319808120083. The next prime is 319808120161. The reversal of 319808120111 is 111021808913.

It is a weak prime.

It is an emirp because it is prime and its reverse (111021808913) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 319808120111 - 2²² = 319803925807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (319808120161) 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 as a sum of consecutive naturals, namely, 159904060055 + 159904060056.

It is an arithmetic number, because the mean of its divisors is an integer number (159904060056).

Almost surely, 2^319808120111 is an apocalyptic number.

319808120111 is a deficient number, since it is larger than the sum of its proper divisors (1).

319808120111 is an equidigital number, since it uses as much as digits as its factorization.

319808120111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 35.

The spelling of 319808120111 in words is "three hundred nineteen billion, eight hundred eight million, one hundred twenty thousand, one hundred eleven".