111000010001001 has 16 divisors (see below), whose sum is σ = 162124495946688. Its totient is φ = 66993593356800.

The previous prime is 111000010000903. The next prime is 111000010001021. The reversal of 111000010001001 is 100100010000111.

It is not a de Polignac number, because 111000010001001 - 2¹⁵ = 111000009968233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111000010001021) 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, 6978491356 + ... + 6978507261.

It is an arithmetic number, because the mean of its divisors is an integer number (10132780996668).

Almost surely, 2^{111000010001001} is an apocalyptic number.

111000010001001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111000010001001 is a deficient number, since it is larger than the sum of its proper divisors (51124485945687).

111000010001001 is a wasteful number, since it uses less digits than its factorization.

111000010001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13956998872.

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

Adding to 111000010001001 its reverse (100100010000111), we get a palindrome (211100020001112).

The spelling of 111000010001001 in words is "one hundred eleven trillion, ten million, one thousand, one".