2091110910911 has 8 divisors (see below), whose sum is σ = 2281414291200. Its totient is φ = 1900841262040.

The previous prime is 2091110910851. The next prime is 2091110910929. The reversal of 2091110910911 is 1190190111902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2091110910911 is a prime.

It is a super-3 number, since 3×2091110910911³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2091110910611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8303141 + ... + 8551278.

It is an arithmetic number, because the mean of its divisors is an integer number (285176786400).

Almost surely, 2^{2091110910911} is an apocalyptic number.

2091110910911 is a deficient number, since it is larger than the sum of its proper divisors (190303380289).

2091110910911 is a wasteful number, since it uses less digits than its factorization.

2091110910911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16865709.

The product of its (nonzero) digits is 1458, while the sum is 35.

The spelling of 2091110910911 in words is "two trillion, ninety-one billion, one hundred ten million, nine hundred ten thousand, nine hundred eleven".