231104 has 28 divisors (see below), whose sum is σ = 481584. Its totient is φ = 109824.

The previous prime is 231079. The next prime is 231107. The reversal of 231104 is 401132.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (231107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1394 + ... + 1550.

2²³¹¹⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240792).

231104 is an abundant number, since it is smaller than the sum of its proper divisors (250480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231104 is a wasteful number, since it uses less digits than its factorization.

231104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 231104 is about 480.7327740024. The cubic root of 231104 is about 61.3671311307.

Adding to 231104 its reverse (401132), we get a palindrome (632236).

The spelling of 231104 in words is "two hundred thirty-one thousand, one hundred four".