111110111101001 has 8 divisors (see below), whose sum is σ = 112032729177600. Its totient is φ = 110191282011072.

The previous prime is 111110111100991. The next prime is 111110111101027. The reversal of 111110111101001 is 100101111011111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111110111101001 - 2¹⁴ = 111110111084617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111110111101051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 947187776 + ... + 947305073.

It is an arithmetic number, because the mean of its divisors is an integer number (14004091147200).

Almost surely, 2^{111110111101001} is an apocalyptic number.

It is an amenable number.

111110111101001 is a deficient number, since it is larger than the sum of its proper divisors (922618076599).

111110111101001 is a wasteful number, since it uses less digits than its factorization.

111110111101001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894493335.

The product of its (nonzero) digits is 1, while the sum is 11.

Adding to 111110111101001 its reverse (100101111011111), we get a palindrome (211211222112112).

It can be divided in two parts, 111110 and 111101001, that added together give a palindrome (111212111).

The spelling of 111110111101001 in words is "one hundred eleven trillion, one hundred ten billion, one hundred eleven million, one hundred one thousand, one".