4013111111 has 4 divisors (see below), whose sum is σ = 4013762424. Its totient is φ = 4012459800.

The previous prime is 4013111099. The next prime is 4013111129. The reversal of 4013111111 is 1111113104.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4013111111 is a prime.

It is a super-2 number, since 2×4013111111² = 32210121578463308642, which contains 22 as substring.

It is a Duffinian number.

4013111111 is a modest number, since divided by 111111 gives 4013 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4013111161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316325 + ... + 328766.

It is an arithmetic number, because the mean of its divisors is an integer number (1003440606).

Almost surely, 2^4013111111 is an apocalyptic number.

4013111111 is a deficient number, since it is larger than the sum of its proper divisors (651313).

4013111111 is an equidigital number, since it uses as much as digits as its factorization.

4013111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651312.

The product of its (nonzero) digits is 12, while the sum is 14.

The square root of 4013111111 is about 63349.1208384142. The cubic root of 4013111111 is about 1589.1335430540.

Adding to 4013111111 its reverse (1111113104), we get a palindrome (5124224215).

The spelling of 4013111111 in words is "four billion, thirteen million, one hundred eleven thousand, one hundred eleven".