231824117 has 4 divisors (see below), whose sum is σ = 264941856. Its totient is φ = 198706380.

The previous prime is 231824101. The next prime is 231824123. The reversal of 231824117 is 711428132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231824117 - 2⁴ = 231824101 is a prime.

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 231824117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231824147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16558859 + ... + 16558872.

It is an arithmetic number, because the mean of its divisors is an integer number (66235464).

Almost surely, 2^231824117 is an apocalyptic number.

It is an amenable number.

231824117 is a deficient number, since it is larger than the sum of its proper divisors (33117739).

231824117 is an equidigital number, since it uses as much as digits as its factorization.

231824117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33117738.

The product of its digits is 2688, while the sum is 29.

The square root of 231824117 is about 15225.7714747070. The cubic root of 231824117 is about 614.3080476338.

The spelling of 231824117 in words is "two hundred thirty-one million, eight hundred twenty-four thousand, one hundred seventeen".