331333213312 has 32 divisors (see below), whose sum is σ = 660104188380. Its totient is φ = 165660005376.

The previous prime is 331333213297. The next prime is 331333213313. The reversal of 331333213312 is 213312333133.

It can be written as a sum of positive squares in 2 ways, for example, as 331287731776 + 45481536 = 575576^2 + 6744^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (331333213313) 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 in 3 ways as a sum of consecutive naturals, for example, 5491018 + ... + 5551030.

Almost surely, 2^331333213312 is an apocalyptic number.

331333213312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

331333213312 is a deficient number, since it is larger than the sum of its proper divisors (328770975068).

331333213312 is an equidigital number, since it uses as much as digits as its factorization.

331333213312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103160 (or 103148 counting only the distinct ones).

The product of its digits is 8748, while the sum is 28.

Adding to 331333213312 its reverse (213312333133), we get a palindrome (544645546445).

The spelling of 331333213312 in words is "three hundred thirty-one billion, three hundred thirty-three million, two hundred thirteen thousand, three hundred twelve".