42111171 has 12 divisors (see below), whose sum is σ = 63080472. Its totient is φ = 28073952.

The previous prime is 42111131. The next prime is 42111211. The reversal of 42111171 is 17111124.

It is an interprime number because it is at equal distance from previous prime (42111131) and next prime (42111211).

It is not a de Polignac number, because 42111171 - 2¹³ = 42102979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42111101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86406 + ... + 86891.

It is an arithmetic number, because the mean of its divisors is an integer number (5256706).

Almost surely, 2^42111171 is an apocalyptic number.

42111171 is a deficient number, since it is larger than the sum of its proper divisors (20969301).

42111171 is an equidigital number, since it uses as much as digits as its factorization.

42111171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173312 (or 173300 counting only the distinct ones).

The product of its digits is 56, while the sum is 18.

The square root of 42111171 is about 6489.3120590707. The cubic root of 42111171 is about 347.9090874290.

Adding to 42111171 its reverse (17111124), we get a palindrome (59222295).

The spelling of 42111171 in words is "forty-two million, one hundred eleven thousand, one hundred seventy-one".