11100100001 has 4 divisors (see below), whose sum is σ = 11482862100. Its totient is φ = 10717337904.

The previous prime is 11100099979. The next prime is 11100100009. The reversal of 11100100001 is 10000100111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10000100111 = 17 ⋅588241183.

It can be written as a sum of positive squares in 2 ways, for example, as 3033365776 + 8066734225 = 55076^2 + 89815^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11100100001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11100100009) 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, 191381006 + ... + 191381063.

It is an arithmetic number, because the mean of its divisors is an integer number (2870715525).

Almost surely, 2^11100100001 is an apocalyptic number.

It is an amenable number.

11100100001 is a deficient number, since it is larger than the sum of its proper divisors (382762099).

11100100001 is an equidigital number, since it uses as much as digits as its factorization.

11100100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382762098.

The product of its (nonzero) digits is 1, while the sum is 5.

Adding to 11100100001 its reverse (10000100111), we get a palindrome (21100200112).

The spelling of 11100100001 in words is "eleven billion, one hundred million, one hundred thousand, one".