111001101111001 has 8 divisors (see below), whose sum is σ = 113691392080640. Its totient is φ = 108341208909648.

The previous prime is 111001101110983. The next prime is 111001101111037. The reversal of 111001101111001 is 100111101100111.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 111001101111001 - 2³³ = 110992511176409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111001101111301) 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, 7599684681 + ... + 7599699286.

It is an arithmetic number, because the mean of its divisors is an integer number (14211424010080).

Almost surely, 2^{111001101111001} is an apocalyptic number.

It is an amenable number.

111001101111001 is a deficient number, since it is larger than the sum of its proper divisors (2690290969639).

111001101111001 is a wasteful number, since it uses less digits than its factorization.

111001101111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15199384143.

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

Adding to 111001101111001 its reverse (100111101100111), we get a palindrome (211112202211112).

The spelling of 111001101111001 in words is "one hundred eleven trillion, one billion, one hundred one million, one hundred eleven thousand, one".