231323333213 has 16 divisors (see below), whose sum is σ = 267583303680. Its totient is φ = 195867319536.

The previous prime is 231323333203. The next prime is 231323333233. The reversal of 231323333213 is 312333323132.

It is not a de Polignac number, because 231323333213 - 2²² = 231319138909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231323333203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8049356 + ... + 8078042.

It is an arithmetic number, because the mean of its divisors is an integer number (16723956480).

Almost surely, 2^231323333213 is an apocalyptic number.

It is an amenable number.

231323333213 is a deficient number, since it is larger than the sum of its proper divisors (36259970467).

231323333213 is a wasteful number, since it uses less digits than its factorization.

231323333213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42656.

The product of its digits is 17496, while the sum is 29.

Adding to 231323333213 its reverse (312333323132), we get a palindrome (543656656345).

The spelling of 231323333213 in words is "two hundred thirty-one billion, three hundred twenty-three million, three hundred thirty-three thousand, two hundred thirteen".