100440111 has 8 divisors (see below), whose sum is σ = 134742400. Its totient is φ = 66548952.

The previous prime is 100440091. The next prime is 100440113. The reversal of 100440111 is 111044001.

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

It is not a de Polignac number, because 100440111 - 2¹⁷ = 100309039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100440113) 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, 102211 + ... + 103188.

It is an arithmetic number, because the mean of its divisors is an integer number (16842800).

Almost surely, 2^100440111 is an apocalyptic number.

100440111 is a deficient number, since it is larger than the sum of its proper divisors (34302289).

100440111 is a wasteful number, since it uses less digits than its factorization.

100440111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205565.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 100440111 is about 10021.9813909227. The cubic root of 100440111 is about 464.8388249365.

Adding to 100440111 its reverse (111044001), we get a palindrome (211484112).

The spelling of 100440111 in words is "one hundred million, four hundred forty thousand, one hundred eleven".