331033212313 has 8 divisors (see below), whose sum is σ = 334514207048. Its totient is φ = 327553611264.

The previous prime is 331033212311. The next prime is 331033212359. The reversal of 331033212313 is 313212330133.

It can be written as a sum of positive squares in 4 ways, for example, as 78936835849 + 252096376464 = 280957^2 + 502092^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 331033212313 - 2¹ = 331033212311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331033212311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132595 + ... + 824407.

It is an arithmetic number, because the mean of its divisors is an integer number (41814275881).

Almost surely, 2^331033212313 is an apocalyptic number.

It is an amenable number.

331033212313 is a deficient number, since it is larger than the sum of its proper divisors (3480994735).

331033212313 is an equidigital number, since it uses as much as digits as its factorization.

331033212313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696843.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 331033212313 its reverse (313212330133), we get a palindrome (644245542446).

The spelling of 331033212313 in words is "three hundred thirty-one billion, thirty-three million, two hundred twelve thousand, three hundred thirteen".