118031 has 8 divisors (see below), whose sum is σ = 128304. Its totient is φ = 108160.

The previous prime is 117991. The next prime is 118033. The reversal of 118031 is 130811.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118031 is a prime.

It is a super-2 number, since 2×118031² = 27862633922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117997 and 118015.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 118031.

It is not an unprimeable number, because it can be changed into a prime (118033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 836 + ... + 966.

It is an arithmetic number, because the mean of its divisors is an integer number (16038).

2¹¹⁸⁰³¹ is an apocalyptic number.

118031 is a deficient number, since it is larger than the sum of its proper divisors (10273).

118031 is a wasteful number, since it uses less digits than its factorization.

118031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 118031 is about 343.5564000277. The cubic root of 118031 is about 49.0529761627.

Adding to 118031 its reverse (130811), we get a palindrome (248842).

The spelling of 118031 in words is "one hundred eighteen thousand, thirty-one".