231830 has 16 divisors (see below), whose sum is σ = 423360. Its totient is φ = 91392.

The previous prime is 231827. The next prime is 231839. The reversal of 231830 is 38132.

231830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 231799 and 231808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231839) 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, 851 + ... + 1089.

It is an arithmetic number, because the mean of its divisors is an integer number (26460).

2²³¹⁸³⁰ is an apocalyptic number.

231830 is a deficient number, since it is larger than the sum of its proper divisors (191530).

231830 is a wasteful number, since it uses less digits than its factorization.

231830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 231830 is about 481.4872791674. The cubic root of 231830 is about 61.4313244021.

Adding to 231830 its reverse (38132), we get a palindrome (269962).

The spelling of 231830 in words is "two hundred thirty-one thousand, eight hundred thirty".