2321067365861 has 2 divisors, whose sum is σ = 2321067365862. Its totient is φ = 2321067365860.

The previous prime is 2321067365777. The next prime is 2321067365921. The reversal of 2321067365861 is 1685637601232.

2321067365861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2235715743361 + 85351622500 = 1495231^2 + 292150^2 .

It is a cyclic number.

It is not a de Polignac number, because 2321067365861 - 2¹⁸ = 2321067103717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2321067361861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160533682930 + 1160533682931.

It is an arithmetic number, because the mean of its divisors is an integer number (1160533682931).

Almost surely, 2^{2321067365861} is an apocalyptic number.

It is an amenable number.

2321067365861 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321067365861 is an equidigital number, since it uses as much as digits as its factorization.

2321067365861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 2321067365861 in words is "two trillion, three hundred twenty-one billion, sixty-seven million, three hundred sixty-five thousand, eight hundred sixty-one".