3120331330321 has 8 divisors (see below), whose sum is σ = 3121524219240. Its totient is φ = 3119138631168.

The previous prime is 3120331330297. The next prime is 3120331330331. The reversal of 3120331330321 is 1230331330213.

It can be written as a sum of positive squares in 4 ways, for example, as 402990084225 + 2717341246096 = 634815^2 + 1648436^2 .

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 3120331330321 - 2¹⁵ = 3120331297553 is a prime.

It is a super-2 number, since 2×3120331330321² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3120331330331) 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 7 ways as a sum of consecutive naturals, for example, 38694175 + ... + 38774731.

It is an arithmetic number, because the mean of its divisors is an integer number (390190527405).

Almost surely, 2^{3120331330321} is an apocalyptic number.

It is an amenable number.

3120331330321 is a deficient number, since it is larger than the sum of its proper divisors (1192888919).

3120331330321 is a wasteful number, since it uses less digits than its factorization.

3120331330321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94883.

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

Adding to 3120331330321 its reverse (1230331330213), we get a palindrome (4350662660534).

The spelling of 3120331330321 in words is "three trillion, one hundred twenty billion, three hundred thirty-one million, three hundred thirty thousand, three hundred twenty-one".