1000001011101 has 16 divisors (see below), whose sum is σ = 1334567073024. Its totient is φ = 666051435584.

The previous prime is 1000001011013. The next prime is 1000001011117. The reversal of 1000001011101 is 1011101000001.

It is a cyclic number.

It is not a de Polignac number, because 1000001011101 - 2¹¹ = 1000001009053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1000001011101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000001011501) 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, 14625871 + ... + 14694083.

It is an arithmetic number, because the mean of its divisors is an integer number (83410442064).

Almost surely, 2^{1000001011101} is an apocalyptic number.

It is an amenable number.

1000001011101 is a deficient number, since it is larger than the sum of its proper divisors (334566061923).

1000001011101 is a wasteful number, since it uses less digits than its factorization.

1000001011101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72660.

The product of its (nonzero) digits is 1, while the sum is 6.

Adding to 1000001011101 its reverse (1011101000001), we get a palindrome (2011102011102).

The spelling of 1000001011101 in words is "one trillion, one million, eleven thousand, one hundred one".