231213320312333 has 2 divisors, whose sum is σ = 231213320312334. Its totient is φ = 231213320312332.

The previous prime is 231213320312327. The next prime is 231213320312353. The reversal of 231213320312333 is 333213023312132.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222703748720644 + 8509571591689 = 14923262^2 + 2917117^2 .

It is a cyclic number.

It is not a de Polignac number, because 231213320312333 - 2⁸ = 231213320312077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231213320312333.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231213320312353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115606660156166 + 115606660156167.

It is an arithmetic number, because the mean of its divisors is an integer number (115606660156167).

Almost surely, 2^{231213320312333} is an apocalyptic number.

It is an amenable number.

231213320312333 is a deficient number, since it is larger than the sum of its proper divisors (1).

231213320312333 is an equidigital number, since it uses as much as digits as its factorization.

231213320312333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 32.

Adding to 231213320312333 its reverse (333213023312132), we get a palindrome (564426343624465).

The spelling of 231213320312333 in words is "two hundred thirty-one trillion, two hundred thirteen billion, three hundred twenty million, three hundred twelve thousand, three hundred thirty-three".