8100100011 has 4 divisors (see below), whose sum is σ = 10800133352. Its totient is φ = 5400066672.

The previous prime is 8100100009. The next prime is 8100100079. The reversal of 8100100011 is 1100010018.

It is a happy number.

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

It is not a de Polignac number, because 8100100011 - 2¹ = 8100100009 is a prime.

It is a super-2 number, since 2×8100100011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8100100011.

It is not an unprimeable number, because it can be changed into a prime (8100100511) 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, 1350016666 + ... + 1350016671.

It is an arithmetic number, because the mean of its divisors is an integer number (2700033338).

Almost surely, 2^8100100011 is an apocalyptic number.

8100100011 is a deficient number, since it is larger than the sum of its proper divisors (2700033341).

8100100011 is a wasteful number, since it uses less digits than its factorization.

8100100011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2700033340.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 8100100011 is about 90000.5556149516. Note that the first 3 decimals coincide. The cubic root of 8100100011 is about 2008.3071157259.

Adding to 8100100011 its reverse (1100010018), we get a palindrome (9200110029).

The spelling of 8100100011 in words is "eight billion, one hundred million, one hundred thousand, eleven".