111000001 has 8 divisors (see below), whose sum is σ = 132372864. Its totient is φ = 91006080.

The previous prime is 110999989. The next prime is 111000007. The reversal of 111000001 is 100000111.

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 111000001 - 2⁵ = 110999969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111000007) 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, 344560 + ... + 344881.

It is an arithmetic number, because the mean of its divisors is an integer number (16546608).

Almost surely, 2^111000001 is an apocalyptic number.

It is an amenable number.

111000001 is a deficient number, since it is larger than the sum of its proper divisors (21372863).

111000001 is an equidigital number, since it uses as much as digits as its factorization.

111000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689471.

The product of its (nonzero) digits is 1, while the sum is 4.

The square root of 111000001 is about 10535.6538003106. The cubic root of 111000001 is about 480.5895548137.

Adding to 111000001 its reverse (100000111), we get a palindrome (211000112).

It can be divided in two parts, 11 and 1000001, that multiplied together give a palindrome (11000011).

The spelling of 111000001 in words is "one hundred eleven million, one", and thus it is an aban number.