111242023101 has 24 divisors (see below), whose sum is σ = 177906746784. Its totient is φ = 66413144160.

The previous prime is 111242023097. The next prime is 111242023117. The reversal of 111242023101 is 101320242111.

111242023101 is a `hidden beast` number, since 1 + 1 + 12 + 420 + 231 + 0 + 1 = 666.

It is not a de Polignac number, because 111242023101 - 2² = 111242023097 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111242023181) 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 23 ways as a sum of consecutive naturals, for example, 8378866 + ... + 8392131.

It is an arithmetic number, because the mean of its divisors is an integer number (7412781116).

Almost surely, 2^111242023101 is an apocalyptic number.

111242023101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111242023101 is a deficient number, since it is larger than the sum of its proper divisors (66664723683).

111242023101 is a wasteful number, since it uses less digits than its factorization.

111242023101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16771081 (or 16771078 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 111242023101 its reverse (101320242111), we get a palindrome (212562265212).

The spelling of 111242023101 in words is "one hundred eleven billion, two hundred forty-two million, twenty-three thousand, one hundred one".