331221101312333 has 4 divisors (see below), whose sum is σ = 331247487137148. Its totient is φ = 331194715487520.

The previous prime is 331221101312323. The next prime is 331221101312449. The reversal of 331221101312333 is 333213101122133.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 330788902885609 + 432198426724 = 18187603^2 + 657418^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331221101312333 is a prime.

It is a super-2 number, since 2×331221101312333² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331221101312296 and 331221101312305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331221101312323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13192893578 + ... + 13192918683.

It is an arithmetic number, because the mean of its divisors is an integer number (82811871784287).

Almost surely, 2^{331221101312333} is an apocalyptic number.

It is an amenable number.

331221101312333 is a deficient number, since it is larger than the sum of its proper divisors (26385824815).

331221101312333 is a wasteful number, since it uses less digits than its factorization.

331221101312333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26385824814.

The product of its (nonzero) digits is 5832, while the sum is 29.

Adding to 331221101312333 its reverse (333213101122133), we get a palindrome (664434202434466).

The spelling of 331221101312333 in words is "three hundred thirty-one trillion, two hundred twenty-one billion, one hundred one million, three hundred twelve thousand, three hundred thirty-three".