130943866861 has 2 divisors, whose sum is σ = 130943866862. Its totient is φ = 130943866860.

The previous prime is 130943866847. The next prime is 130943866897. The reversal of 130943866861 is 168668349031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130779873225 + 163993636 = 361635^2 + 12806^2 .

It is a cyclic number.

It is not a de Polignac number, because 130943866861 - 2⁷ = 130943866733 is a prime.

It is a super-2 number, since 2×130943866861² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130943866831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65471933430 + 65471933431.

It is an arithmetic number, because the mean of its divisors is an integer number (65471933431).

Almost surely, 2^130943866861 is an apocalyptic number.

It is an amenable number.

130943866861 is a deficient number, since it is larger than the sum of its proper divisors (1).

130943866861 is an equidigital number, since it uses as much as digits as its factorization.

130943866861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4478976, while the sum is 55.

The spelling of 130943866861 in words is "one hundred thirty billion, nine hundred forty-three million, eight hundred sixty-six thousand, eight hundred sixty-one".