4131111 has 4 divisors (see below), whose sum is σ = 5508152. Its totient is φ = 2754072.

The previous prime is 4131109. The next prime is 4131223. The reversal of 4131111 is 1111314.

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

It is not a de Polignac number, because 4131111 - 2¹ = 4131109 is a prime.

It is a D-number.

It is a Duffinian number.

4131111 is a modest number, since divided by 1111 gives 413 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4130111) 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, 688516 + ... + 688521.

It is an arithmetic number, because the mean of its divisors is an integer number (1377038).

Almost surely, 2^4131111 is an apocalyptic number.

4131111 is a deficient number, since it is larger than the sum of its proper divisors (1377041).

4131111 is a wasteful number, since it uses less digits than its factorization.

4131111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377040.

The product of its digits is 12, while the sum is 12.

The square root of 4131111 is about 2032.5134685901. The cubic root of 4131111 is about 160.4558743616.

Adding to 4131111 its reverse (1111314), we get a palindrome (5242425).

The spelling of 4131111 in words is "four million, one hundred thirty-one thousand, one hundred eleven".