111111001001101 has 32 divisors (see below), whose sum is σ = 115005645619200. Its totient is φ = 107279926934400.

The previous prime is 111111001001093. The next prime is 111111001001107. The reversal of 111111001001101 is 101100100111111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111111001001101 - 2³ = 111111001001093 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 (111111001001107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1342089630 + ... + 1342172416.

It is an arithmetic number, because the mean of its divisors is an integer number (3593926425600).

Almost surely, 2^{111111001001101} is an apocalyptic number.

It is an amenable number.

111111001001101 is a deficient number, since it is larger than the sum of its proper divisors (3894644618099).

111111001001101 is a wasteful number, since it uses less digits than its factorization.

111111001001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83905.

The product of its (nonzero) digits is 1, while the sum is 10.

Adding to 111111001001101 its reverse (101100100111111), we get a palindrome (212211101112212).

The spelling of 111111001001101 in words is "one hundred eleven trillion, one hundred eleven billion, one million, one thousand, one hundred one".