111100001010001 has 4 divisors (see below), whose sum is σ = 111107723273712. Its totient is φ = 111092278746292.

The previous prime is 111100001009941. The next prime is 111100001010007. The reversal of 111100001010001 is 100010100001111.

It is a happy number.

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 111100001010001 - 2¹⁹ = 111100000485713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111100001010007) 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 3 ways as a sum of consecutive naturals, for example, 3861110275 + ... + 3861139048.

It is an arithmetic number, because the mean of its divisors is an integer number (27776930818428).

Almost surely, 2^{111100001010001} is an apocalyptic number.

It is an amenable number.

111100001010001 is a deficient number, since it is larger than the sum of its proper divisors (7722263711).

111100001010001 is an equidigital number, since it uses as much as digits as its factorization.

111100001010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7722263710.

The product of its (nonzero) digits is 1, while the sum is 7.

Adding to 111100001010001 its reverse (100010100001111), we get a palindrome (211110101011112).

The spelling of 111100001010001 in words is "one hundred eleven trillion, one hundred billion, one million, ten thousand, one".