323130440233 has 2 divisors, whose sum is σ = 323130440234. Its totient is φ = 323130440232.

The previous prime is 323130440207. The next prime is 323130440279. The reversal of 323130440233 is 332044031323.

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., 247498290064 + 75632150169 = 497492^2 + 275013^2 .

It is an emirp because it is prime and its reverse (332044031323) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323130440233 is a prime.

It is not a weakly prime, because it can be changed into another prime (323130440533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161565220116 + 161565220117.

It is an arithmetic number, because the mean of its divisors is an integer number (161565220117).

Almost surely, 2^323130440233 is an apocalyptic number.

It is an amenable number.

323130440233 is a deficient number, since it is larger than the sum of its proper divisors (1).

323130440233 is an equidigital number, since it uses as much as digits as its factorization.

323130440233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 323130440233 its reverse (332044031323), we get a palindrome (655174471556).

The spelling of 323130440233 in words is "three hundred twenty-three billion, one hundred thirty million, four hundred forty thousand, two hundred thirty-three".