1811000010011 has 8 divisors (see below), whose sum is σ = 1821080970720. Its totient is φ = 1800943254592.

The previous prime is 1811000009999. The next prime is 1811000010031. The reversal of 1811000010011 is 1100100001181.

It is a happy number.

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-1811000010011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1811000010031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5901260 + ... + 6200553.

It is an arithmetic number, because the mean of its divisors is an integer number (227635121340).

Almost surely, 2^{1811000010011} is an apocalyptic number.

1811000010011 is a deficient number, since it is larger than the sum of its proper divisors (10080960709).

1811000010011 is a wasteful number, since it uses less digits than its factorization.

1811000010011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12102645.

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

Adding to 1811000010011 its reverse (1100100001181), we get a palindrome (2911100011192).

The spelling of 1811000010011 in words is "one trillion, eight hundred eleven billion, ten thousand, eleven".