331223202313 has 2 divisors, whose sum is σ = 331223202314. Its totient is φ = 331223202312.

The previous prime is 331223202301. The next prime is 331223202367. The reversal of 331223202313 is 313202322133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 324070609984 + 7152592329 = 569272^2 + 84573^2 .

It is a cyclic number.

It is not a de Polignac number, because 331223202313 - 2⁵ = 331223202281 is a prime.

It is not a weakly prime, because it can be changed into another prime (331223202383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165611601156 + 165611601157.

It is an arithmetic number, because the mean of its divisors is an integer number (165611601157).

Almost surely, 2^331223202313 is an apocalyptic number.

It is an amenable number.

331223202313 is a deficient number, since it is larger than the sum of its proper divisors (1).

331223202313 is an equidigital number, since it uses as much as digits as its factorization.

331223202313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 331223202313 its reverse (313202322133), we get a palindrome (644425524446).

The spelling of 331223202313 in words is "three hundred thirty-one billion, two hundred twenty-three million, two hundred two thousand, three hundred thirteen".