231233321 has 8 divisors (see below), whose sum is σ = 253079904. Its totient is φ = 209524320.

The previous prime is 231233293. The next prime is 231233341. The reversal of 231233321 is 123332132.

231233321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 231233321 - 2⁶ = 231233257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231233293 and 231233302.

It is not an unprimeable number, because it can be changed into a prime (231233341) 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, 30860 + ... + 37613.

It is an arithmetic number, because the mean of its divisors is an integer number (31634988).

Almost surely, 2^231233321 is an apocalyptic number.

It is an amenable number.

231233321 is a deficient number, since it is larger than the sum of its proper divisors (21846583).

231233321 is a wasteful number, since it uses less digits than its factorization.

231233321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68791.

The product of its digits is 648, while the sum is 20.

The square root of 231233321 is about 15206.3579137149. The cubic root of 231233321 is about 613.7857558710.

Adding to 231233321 its reverse (123332132), we get a palindrome (354565453).

The spelling of 231233321 in words is "two hundred thirty-one million, two hundred thirty-three thousand, three hundred twenty-one".