1000111111101 has 16 divisors (see below), whose sum is σ = 1546065486720. Its totient is φ = 637752012480.

The previous prime is 1000111111067. The next prime is 1000111111141. The reversal of 1000111111101 is 1011111110001.

It is not a de Polignac number, because 1000111111101 - 2⁶ = 1000111111037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000111111141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 805241820 + ... + 805243061.

It is an arithmetic number, because the mean of its divisors is an integer number (96629092920).

Almost surely, 2^{1000111111101} is an apocalyptic number.

It is an amenable number.

1000111111101 is a deficient number, since it is larger than the sum of its proper divisors (545954375619).

1000111111101 is a wasteful number, since it uses less digits than its factorization.

1000111111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610484913 (or 1610484907 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 1000111111101 its reverse (1011111110001), we get a palindrome (2011222221102).

The spelling of 1000111111101 in words is "one trillion, one hundred eleven million, one hundred eleven thousand, one hundred one".