4000000111 has 4 divisors (see below), whose sum is σ = 4000730400. Its totient is φ = 3999269824.

The previous prime is 4000000063. The next prime is 4000000133. The reversal of 4000000111 is 1110000004.

It is a happy number.

4000000111 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4000000111 - 2⁹ = 3999999599 is a prime.

It is a Duffinian number.

4000000111 is a modest number, since divided by 111 gives 4 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 4000000094 and 4000000103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000004111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356866 + ... + 367903.

It is an arithmetic number, because the mean of its divisors is an integer number (1000182600).

Almost surely, 2^4000000111 is an apocalyptic number.

4000000111 is a deficient number, since it is larger than the sum of its proper divisors (730289).

4000000111 is an equidigital number, since it uses as much as digits as its factorization.

4000000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730288.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 4000000111 is about 63245.5540808996. The cubic root of 4000000111 is about 1587.4010666517.

Adding to 4000000111 its reverse (1110000004), we get a palindrome (5110000115).

The spelling of 4000000111 in words is "four billion, one hundred eleven", and thus it is an aban number.