130194824861 has 2 divisors, whose sum is σ = 130194824862. Its totient is φ = 130194824860.

The previous prime is 130194824843. The next prime is 130194824867. The reversal of 130194824861 is 168428491031.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126518221636 + 3676603225 = 355694^2 + 60635^2 .

It is a cyclic number.

It is not a de Polignac number, because 130194824861 - 2¹⁸ = 130194562717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130194824867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65097412430 + 65097412431.

It is an arithmetic number, because the mean of its divisors is an integer number (65097412431).

Almost surely, 2^130194824861 is an apocalyptic number.

It is an amenable number.

130194824861 is a deficient number, since it is larger than the sum of its proper divisors (1).

130194824861 is an equidigital number, since it uses as much as digits as its factorization.

130194824861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331776, while the sum is 47.

The spelling of 130194824861 in words is "one hundred thirty billion, one hundred ninety-four million, eight hundred twenty-four thousand, eight hundred sixty-one".