4231111 has 2 divisors, whose sum is σ = 4231112. Its totient is φ = 4231110.

The previous prime is 4231109. The next prime is 4231121. The reversal of 4231111 is 1111324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4231111 - 2¹ = 4231109 is a prime.

Together with 4231109, it forms a pair of twin primes.

4231111 is a modest number, since divided by 1111 gives 423 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 4231091 and 4231100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4231121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2115555 + 2115556.

It is an arithmetic number, because the mean of its divisors is an integer number (2115556).

Almost surely, 2^4231111 is an apocalyptic number.

4231111 is a deficient number, since it is larger than the sum of its proper divisors (1).

4231111 is an equidigital number, since it uses as much as digits as its factorization.

4231111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24, while the sum is 13.

The square root of 4231111 is about 2056.9664557304. The cubic root of 4231111 is about 161.7402610102.

Adding to 4231111 its reverse (1111324), we get a palindrome (5342435).

The spelling of 4231111 in words is "four million, two hundred thirty-one thousand, one hundred eleven".