1811100100001 has 16 divisors (see below), whose sum is σ = 1878207052800. Its totient is φ = 1744553341440.

The previous prime is 1811100099973. The next prime is 1811100100021. The reversal of 1811100100001 is 1000010011181.

It is a happy number.

It is not a de Polignac number, because 1811100100001 - 2³⁰ = 1810026358177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1811100100021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6113045 + ... + 6402461.

It is an arithmetic number, because the mean of its divisors is an integer number (117387940800).

Almost surely, 2^{1811100100001} is an apocalyptic number.

It is an amenable number.

1811100100001 is a deficient number, since it is larger than the sum of its proper divisors (67106952799).

1811100100001 is a wasteful number, since it uses less digits than its factorization.

1811100100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290384.

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

Adding to 1811100100001 its reverse (1000010011181), we get a palindrome (2811110111182).

The spelling of 1811100100001 in words is "one trillion, eight hundred eleven billion, one hundred million, one hundred thousand, one".