110111111001001 has 8 divisors (see below), whose sum is σ = 120211732900224. Its totient is φ = 100025575918320.

The previous prime is 110111111000999. The next prime is 110111111001019. The reversal of 110111111001001 is 100100111111011.

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 110111111001001 - 2¹ = 110111111000999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110111111001701) 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, 3771688870 + ... + 3771718063.

It is an arithmetic number, because the mean of its divisors is an integer number (15026466612528).

Almost surely, 2^{110111111001001} is an apocalyptic number.

110111111001001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

110111111001001 is a deficient number, since it is larger than the sum of its proper divisors (10100621899223).

110111111001001 is a wasteful number, since it uses less digits than its factorization.

110111111001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7543408271.

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

Adding to 110111111001001 its reverse (100100111111011), we get a palindrome (210211222112012).

The spelling of 110111111001001 in words is "one hundred ten trillion, one hundred eleven billion, one hundred eleven million, one thousand, one".