111100101010001 has 4 divisors (see below), whose sum is σ = 113463932946432. Its totient is φ = 108736269073572.

The previous prime is 111100101009881. The next prime is 111100101010097. The reversal of 111100101010001 is 100010101001111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111100101010001 - 2³⁸ = 110825223103057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111100101012001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1181915968145 + ... + 1181915968238.

It is an arithmetic number, because the mean of its divisors is an integer number (28365983236608).

Almost surely, 2^{111100101010001} is an apocalyptic number.

It is an amenable number.

111100101010001 is a deficient number, since it is larger than the sum of its proper divisors (2363831936431).

111100101010001 is an equidigital number, since it uses as much as digits as its factorization.

111100101010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2363831936430.

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 111100101010001 its reverse (100010101001111), we get a palindrome (211110202011112).

It can be divided in two parts, 111100 and 101010001, that added together give a palindrome (101121101).

The spelling of 111100101010001 in words is "one hundred eleven trillion, one hundred billion, one hundred one million, ten thousand, one".