231003432 has 96 divisors (see below), whose sum is σ = 701045280. Its totient is φ = 68100480.

The previous prime is 231003431. The next prime is 231003457. The reversal of 231003432 is 234300132.

231003432 is a `hidden beast` number, since 231 + 0 + 0 + 3 + 432 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (231003431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25363 + ... + 33245.

It is an arithmetic number, because the mean of its divisors is an integer number (7302555).

Almost surely, 2^231003432 is an apocalyptic number.

231003432 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231003432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350522640).

231003432 is an abundant number, since it is smaller than the sum of its proper divisors (470041848).

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

231003432 is a wasteful number, since it uses less digits than its factorization.

231003432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7943 (or 7936 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 231003432 is about 15198.7970576622. The cubic root of 231003432 is about 613.5822826293.

Adding to 231003432 its reverse (234300132), we get a palindrome (465303564).

The spelling of 231003432 in words is "two hundred thirty-one million, three thousand, four hundred thirty-two".