2001116839 has 2 divisors, whose sum is σ = 2001116840. Its totient is φ = 2001116838.

The previous prime is 2001116837. The next prime is 2001116849. The reversal of 2001116839 is 9386111002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2001116839 - 2¹ = 2001116837 is a prime.

Together with 2001116837, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2001116839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001116837) 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, 1000558419 + 1000558420.

It is an arithmetic number, because the mean of its divisors is an integer number (1000558420).

Almost surely, 2^2001116839 is an apocalyptic number.

2001116839 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001116839 is an equidigital number, since it uses as much as digits as its factorization.

2001116839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 2001116839 is about 44733.8444469062. The cubic root of 2001116839 is about 1260.1555277489.

The spelling of 2001116839 in words is "two billion, one million, one hundred sixteen thousand, eight hundred thirty-nine".