111205404101 has 8 divisors (see below), whose sum is σ = 121408106304. Its totient is φ = 101018221920.

The previous prime is 111205404091. The next prime is 111205404119. The reversal of 111205404101 is 101404502111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111205404101 - 2²² = 111201209797 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 (111205404601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3865016 + ... + 3893681.

It is an arithmetic number, because the mean of its divisors is an integer number (15176013288).

Almost surely, 2^111205404101 is an apocalyptic number.

111205404101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111205404101 is a deficient number, since it is larger than the sum of its proper divisors (10202702203).

111205404101 is a wasteful number, since it uses less digits than its factorization.

111205404101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7760011.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 111205404101 its reverse (101404502111), we get a palindrome (212609906212).

The spelling of 111205404101 in words is "one hundred eleven billion, two hundred five million, four hundred four thousand, one hundred one".