3120333231161 has 2 divisors, whose sum is σ = 3120333231162. Its totient is φ = 3120333231160.

The previous prime is 3120333231137. The next prime is 3120333231187. The reversal of 3120333231161 is 1611323330213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3107308715536 + 13024515625 = 1762756^2 + 114125^2 .

It is an emirp because it is prime and its reverse (1611323330213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3120333231161 - 2⁶ = 3120333231097 is a prime.

It is a super-2 number, since 2×3120333231161² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3120333231661) 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 as a sum of consecutive naturals, namely, 1560166615580 + 1560166615581.

It is an arithmetic number, because the mean of its divisors is an integer number (1560166615581).

Almost surely, 2^{3120333231161} is an apocalyptic number.

It is an amenable number.

3120333231161 is a deficient number, since it is larger than the sum of its proper divisors (1).

3120333231161 is an equidigital number, since it uses as much as digits as its factorization.

3120333231161 is an odious number, because the sum of its binary digits is odd.

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

Adding to 3120333231161 its reverse (1611323330213), we get a palindrome (4731656561374).

The spelling of 3120333231161 in words is "three trillion, one hundred twenty billion, three hundred thirty-three million, two hundred thirty-one thousand, one hundred sixty-one".