231230321333 has 4 divisors (see below), whose sum is σ = 252251259648. Its totient is φ = 210209383020.

The previous prime is 231230321321. The next prime is 231230321339. The reversal of 231230321333 is 333123032132.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231230321333 - 2⁴ = 231230321317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231230321339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10510469141 + ... + 10510469162.

It is an arithmetic number, because the mean of its divisors is an integer number (63062814912).

Almost surely, 2^231230321333 is an apocalyptic number.

It is an amenable number.

231230321333 is a deficient number, since it is larger than the sum of its proper divisors (21020938315).

231230321333 is a wasteful number, since it uses less digits than its factorization.

231230321333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21020938314.

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 231230321333 its reverse (333123032132), we get a palindrome (564353353465).

The spelling of 231230321333 in words is "two hundred thirty-one billion, two hundred thirty million, three hundred twenty-one thousand, three hundred thirty-three".