2011112161711 has 4 divisors (see below), whose sum is σ = 2011134069000. Its totient is φ = 2011090254424.

The previous prime is 2011112161687. The next prime is 2011112161717. The reversal of 2011112161711 is 1171612111102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011112161711 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 (2011112161717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10815361 + ... + 10999738.

It is an arithmetic number, because the mean of its divisors is an integer number (502783517250).

Almost surely, 2^{2011112161711} is an apocalyptic number.

2011112161711 is a deficient number, since it is larger than the sum of its proper divisors (21907289).

2011112161711 is an equidigital number, since it uses as much as digits as its factorization.

2011112161711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21907288.

The product of its (nonzero) digits is 168, while the sum is 25.

Adding to 2011112161711 its reverse (1171612111102), we get a palindrome (3182724272813).

The spelling of 2011112161711 in words is "two trillion, eleven billion, one hundred twelve million, one hundred sixty-one thousand, seven hundred eleven".