111000100011001 has 4 divisors (see below), whose sum is σ = 111007369664100. Its totient is φ = 110992830357904.

The previous prime is 111000100010971. The next prime is 111000100011007. The reversal of 111000100011001 is 100110001000111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35494010559225 + 75506089451776 = 5957685^2 + 8689424^2 .

It is a cyclic number.

It is not a de Polignac number, because 111000100011001 - 2²³ = 111000091622393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111000100011007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3634803646 + ... + 3634834183.

It is an arithmetic number, because the mean of its divisors is an integer number (27751842416025).

Almost surely, 2^{111000100011001} is an apocalyptic number.

It is an amenable number.

111000100011001 is a deficient number, since it is larger than the sum of its proper divisors (7269653099).

111000100011001 is an equidigital number, since it uses as much as digits as its factorization.

111000100011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7269653098.

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

Adding to 111000100011001 its reverse (100110001000111), we get a palindrome (211110101011112).

The spelling of 111000100011001 in words is "one hundred eleven trillion, one hundred million, eleven thousand, one".