3131108897243 has 2 divisors, whose sum is σ = 3131108897244. Its totient is φ = 3131108897242.

The previous prime is 3131108897237. The next prime is 3131108897297. The reversal of 3131108897243 is 3427988011313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3131108897243 - 2⁴ = 3131108897227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3131108897191 and 3131108897200.

It is not a weakly prime, because it can be changed into another prime (3131108897443) 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, 1565554448621 + 1565554448622.

It is an arithmetic number, because the mean of its divisors is an integer number (1565554448622).

Almost surely, 2^{3131108897243} is an apocalyptic number.

3131108897243 is a deficient number, since it is larger than the sum of its proper divisors (1).

3131108897243 is an equidigital number, since it uses as much as digits as its factorization.

3131108897243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 3131108897243 in words is "three trillion, one hundred thirty-one billion, one hundred eight million, eight hundred ninety-seven thousand, two hundred forty-three".