42231111 has 16 divisors (see below), whose sum is σ = 64207584. Its totient is φ = 24459264.

The previous prime is 42231103. The next prime is 42231113. The reversal of 42231111 is 11113224.

It is not a de Polignac number, because 42231111 - 2³ = 42231103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42231113) 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 in 15 ways as a sum of consecutive naturals, for example, 31186 + ... + 32511.

It is an arithmetic number, because the mean of its divisors is an integer number (4012974).

Almost surely, 2^42231111 is an apocalyptic number.

42231111 is a deficient number, since it is larger than the sum of its proper divisors (21976473).

42231111 is a wasteful number, since it uses less digits than its factorization.

42231111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63730.

The product of its digits is 48, while the sum is 15.

The square root of 42231111 is about 6498.5468375630. The cubic root of 42231111 is about 348.2390763693.

Adding to 42231111 its reverse (11113224), we get a palindrome (53344335).

The spelling of 42231111 in words is "forty-two million, two hundred thirty-one thousand, one hundred eleven".