111201671 has 8 divisors (see below), whose sum is σ = 129792000. Its totient is φ = 93287448.

The previous prime is 111201659. The next prime is 111201683. The reversal of 111201671 is 176102111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111201659) and next prime (111201683).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111201671 - 2¹⁰ = 111200647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111201611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168671 + ... + 169328.

It is an arithmetic number, because the mean of its divisors is an integer number (16224000).

Almost surely, 2^111201671 is an apocalyptic number.

111201671 is a deficient number, since it is larger than the sum of its proper divisors (18590329).

111201671 is an equidigital number, since it uses as much as digits as its factorization.

111201671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338053.

The product of its (nonzero) digits is 84, while the sum is 20.

The square root of 111201671 is about 10545.2202916772. The cubic root of 111201671 is about 480.8804312620.

Adding to 111201671 its reverse (176102111), we get a palindrome (287303782).

The spelling of 111201671 in words is "one hundred eleven million, two hundred one thousand, six hundred seventy-one".