2117021711 has 16 divisors (see below), whose sum is σ = 2509477440. Its totient is φ = 1748044800.

The previous prime is 2117021707. The next prime is 2117021717. The reversal of 2117021711 is 1171207112.

It is a cyclic number.

It is not a de Polignac number, because 2117021711 - 2² = 2117021707 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 (2117021717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14306 + ... + 66623.

It is an arithmetic number, because the mean of its divisors is an integer number (156842340).

Almost surely, 2^2117021711 is an apocalyptic number.

2117021711 is a deficient number, since it is larger than the sum of its proper divisors (392455729).

2117021711 is a wasteful number, since it uses less digits than its factorization.

2117021711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81074.

The product of its (nonzero) digits is 196, while the sum is 23.

The square root of 2117021711 is about 46011.1042140916. The cubic root of 2117021711 is about 1284.0298027764.

Adding to 2117021711 its reverse (1171207112), we get a palindrome (3288228823).

The spelling of 2117021711 in words is "two billion, one hundred seventeen million, twenty-one thousand, seven hundred eleven".