111001001100101 has 16 divisors (see below), whose sum is σ = 128884291776000. Its totient is φ = 93627136571760.

The previous prime is 111001001100091. The next prime is 111001001100251. The reversal of 111001001100101 is 101001100100111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111001001100101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111001001100401) 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, 121416851 + ... + 122327648.

It is an arithmetic number, because the mean of its divisors is an integer number (8055268236000).

Almost surely, 2^{111001001100101} is an apocalyptic number.

It is an amenable number.

111001001100101 is a deficient number, since it is larger than the sum of its proper divisors (17883290675899).

111001001100101 is an equidigital number, since it uses as much as digits as its factorization.

111001001100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243745544.

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

Adding to 111001001100101 its reverse (101001100100111), we get a palindrome (212002101200212).

The spelling of 111001001100101 in words is "one hundred eleven trillion, one billion, one million, one hundred thousand, one hundred one".