130989428861 has 4 divisors (see below), whose sum is σ = 131201730012. Its totient is φ = 130777127712.

The previous prime is 130989428833. The next prime is 130989428881. The reversal of 130989428861 is 168824989031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 168824989031 = 61 ⋅2767622771.

It can be written as a sum of positive squares in 2 ways, for example, as 62662605625 + 68326823236 = 250325^2 + 261394^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130989428861 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130989428861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130989428881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106149650 + ... + 106150883.

It is an arithmetic number, because the mean of its divisors is an integer number (32800432503).

Almost surely, 2^130989428861 is an apocalyptic number.

It is an amenable number.

130989428861 is a deficient number, since it is larger than the sum of its proper divisors (212301151).

130989428861 is an equidigital number, since it uses as much as digits as its factorization.

130989428861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212301150.

The product of its (nonzero) digits is 5971968, while the sum is 59.

The spelling of 130989428861 in words is "one hundred thirty billion, nine hundred eighty-nine million, four hundred twenty-eight thousand, eight hundred sixty-one".