111010111001 has 8 divisors (see below), whose sum is σ = 111192624960. Its totient is φ = 110827685808.

The previous prime is 111010110977. The next prime is 111010111021. The reversal of 111010111001 is 100111010111.

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 111010111001 - 2¹⁴ = 111010094617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111010111001.

It is not an unprimeable number, because it can be changed into a prime (111010111021) 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, 2763875 + ... + 2803751.

It is an arithmetic number, because the mean of its divisors is an integer number (13899078120).

Almost surely, 2^111010111001 is an apocalyptic number.

It is an amenable number.

111010111001 is a deficient number, since it is larger than the sum of its proper divisors (182513959).

111010111001 is an equidigital number, since it uses as much as digits as its factorization.

111010111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44383.

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 111010111001 its reverse (100111010111), we get a palindrome (211121121112).

The spelling of 111010111001 in words is "one hundred eleven billion, ten million, one hundred eleven thousand, one".