331230323213 has 2 divisors, whose sum is σ = 331230323214. Its totient is φ = 331230323212.

The previous prime is 331230323143. The next prime is 331230323261. The reversal of 331230323213 is 312323032133.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 331018416964 + 211906249 = 575342^2 + 14557^2 .

It is a cyclic number.

It is not a de Polignac number, because 331230323213 - 2⁸ = 331230322957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331230323813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165615161606 + 165615161607.

It is an arithmetic number, because the mean of its divisors is an integer number (165615161607).

Almost surely, 2^331230323213 is an apocalyptic number.

It is an amenable number.

331230323213 is a deficient number, since it is larger than the sum of its proper divisors (1).

331230323213 is an equidigital number, since it uses as much as digits as its factorization.

331230323213 is an evil number, because the sum of its binary digits is even.

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

Adding to 331230323213 its reverse (312323032133), we get a palindrome (643553355346).

The spelling of 331230323213 in words is "three hundred thirty-one billion, two hundred thirty million, three hundred twenty-three thousand, two hundred thirteen".