232123209 has 8 divisors (see below), whose sum is σ = 325787040. Its totient is φ = 146604096.

The previous prime is 232123207. The next prime is 232123217. The reversal of 232123209 is 902321232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 232123209 - 2¹ = 232123207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (232123201) 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 7 ways as a sum of consecutive naturals, for example, 2036112 + ... + 2036225.

It is an arithmetic number, because the mean of its divisors is an integer number (40723380).

Almost surely, 2^232123209 is an apocalyptic number.

It is an amenable number.

232123209 is a deficient number, since it is larger than the sum of its proper divisors (93663831).

232123209 is a wasteful number, since it uses less digits than its factorization.

232123209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4072359.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 232123209 is about 15235.5902084560. The cubic root of 232123209 is about 614.5721209111.

The spelling of 232123209 in words is "two hundred thirty-two million, one hundred twenty-three thousand, two hundred nine".