101110111001001 has 20 divisors (see below), whose sum is σ = 151042049161872. Its totient is φ = 67406285841048.

The previous prime is 101110111000961. The next prime is 101110111001033. The reversal of 101110111001001 is 100100111011101.

It is not a de Polignac number, because 101110111001001 - 2³⁰ = 101109037259177 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 not an unprimeable number, because it can be changed into a prime (101110111009001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8087566 + ... + 16359368.

Almost surely, 2^{101110111001001} is an apocalyptic number.

It is an amenable number.

101110111001001 is a deficient number, since it is larger than the sum of its proper divisors (49931938160871).

101110111001001 is an equidigital number, since it uses as much as digits as its factorization.

101110111001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8422722 (or 8422713 counting only the distinct ones).

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

Adding to 101110111001001 its reverse (100100111011101), we get a palindrome (201210222012102).

The spelling of 101110111001001 in words is "one hundred one trillion, one hundred ten billion, one hundred eleven million, one thousand, one".