8100111011 has 4 divisors (see below), whose sum is σ = 8102463000. Its totient is φ = 8097759024.

The previous prime is 8100111007. The next prime is 8100111013. The reversal of 8100111011 is 1101110018.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 8100111011 - 2² = 8100111007 is a prime.

It is a super-2 number, since 2×8100111011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8100111013) 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, 1170821 + ... + 1177718.

It is an arithmetic number, because the mean of its divisors is an integer number (2025615750).

Almost surely, 2^8100111011 is an apocalyptic number.

8100111011 is a deficient number, since it is larger than the sum of its proper divisors (2351989).

8100111011 is a wasteful number, since it uses less digits than its factorization.

8100111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351988.

The product of its (nonzero) digits is 8, while the sum is 14.

The square root of 8100111011 is about 90000.6167256647. The cubic root of 8100111011 is about 2008.3080248245.

Adding to 8100111011 its reverse (1101110018), we get a palindrome (9201221029).

The spelling of 8100111011 in words is "eight billion, one hundred million, one hundred eleven thousand, eleven".