117230831 has 4 divisors (see below), whose sum is σ = 119725152. Its totient is φ = 114736512.

The previous prime is 117230749. The next prime is 117230843. The reversal of 117230831 is 138032711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 138032711 = 6163 ⋅22397.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117230831 is a prime.

It is a super-3 number, since 3×117230831³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117230831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117230891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1247090 + ... + 1247183.

It is an arithmetic number, because the mean of its divisors is an integer number (29931288).

Almost surely, 2^117230831 is an apocalyptic number.

117230831 is a deficient number, since it is larger than the sum of its proper divisors (2494321).

117230831 is an equidigital number, since it uses as much as digits as its factorization.

117230831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494320.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 117230831 is about 10827.3187354950. The cubic root of 117230831 is about 489.4187624265.

The spelling of 117230831 in words is "one hundred seventeen million, two hundred thirty thousand, eight hundred thirty-one".