7231083205861 has 2 divisors, whose sum is σ = 7231083205862. Its totient is φ = 7231083205860.

The previous prime is 7231083205859. The next prime is 7231083205867. The reversal of 7231083205861 is 1685023801327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6580327996225 + 650755209636 = 2565215^2 + 806694^2 .

It is a cyclic number.

It is not a de Polignac number, because 7231083205861 - 2¹ = 7231083205859 is a prime.

Together with 7231083205859, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7231083205867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3615541602930 + 3615541602931.

It is an arithmetic number, because the mean of its divisors is an integer number (3615541602931).

Almost surely, 2^{7231083205861} is an apocalyptic number.

It is an amenable number.

7231083205861 is a deficient number, since it is larger than the sum of its proper divisors (1).

7231083205861 is an equidigital number, since it uses as much as digits as its factorization.

7231083205861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 7231083205861 in words is "seven trillion, two hundred thirty-one billion, eighty-three million, two hundred five thousand, eight hundred sixty-one".