231330033213 has 32 divisors (see below), whose sum is σ = 333065779200. Its totient is φ = 142378036416.

The previous prime is 231330033203. The next prime is 231330033353. The reversal of 231330033213 is 312330033132.

It is not a de Polignac number, because 231330033213 - 2⁶ = 231330033149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231330033203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6142306 + ... + 6179852.

It is an arithmetic number, because the mean of its divisors is an integer number (10408305600).

Almost surely, 2^231330033213 is an apocalyptic number.

231330033213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

231330033213 is a deficient number, since it is larger than the sum of its proper divisors (101735745987).

231330033213 is a wasteful number, since it uses less digits than its factorization.

231330033213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40681.

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 231330033213 its reverse (312330033132), we get a palindrome (543660066345).

The spelling of 231330033213 in words is "two hundred thirty-one billion, three hundred thirty million, thirty-three thousand, two hundred thirteen".