331221330323313 has 8 divisors (see below), whose sum is σ = 444553132090176. Its totient is φ = 219351874386000.

The previous prime is 331221330323311. The next prime is 331221330323347. The reversal of 331221330323313 is 313323033122133.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 331221330323313 - 2¹ = 331221330323311 is a prime.

It is a super-2 number, since 2×331221330323313² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331221330323311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365586456858 + ... + 365586457763.

It is an arithmetic number, because the mean of its divisors is an integer number (55569141511272).

Almost surely, 2^{331221330323313} is an apocalyptic number.

It is an amenable number.

331221330323313 is a deficient number, since it is larger than the sum of its proper divisors (113331801766863).

331221330323313 is a wasteful number, since it uses less digits than its factorization.

331221330323313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731172914775.

The product of its (nonzero) digits is 52488, while the sum is 33.

Adding to 331221330323313 its reverse (313323033122133), we get a palindrome (644544363445446).

The spelling of 331221330323313 in words is "three hundred thirty-one trillion, two hundred twenty-one billion, three hundred thirty million, three hundred twenty-three thousand, three hundred thirteen".