130561271621 has 16 divisors (see below), whose sum is σ = 149005284480. Its totient is φ = 113239600320.

The previous prime is 130561271609. The next prime is 130561271623. The reversal of 130561271621 is 126172165031.

It is a happy number.

It is not a de Polignac number, because 130561271621 - 2³⁰ = 129487529797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130561271623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 564890 + ... + 761723.

It is an arithmetic number, because the mean of its divisors is an integer number (9312830280).

Almost surely, 2^130561271621 is an apocalyptic number.

130561271621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

130561271621 is a deficient number, since it is larger than the sum of its proper divisors (18444012859).

130561271621 is a wasteful number, since it uses less digits than its factorization.

130561271621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327036.

The product of its (nonzero) digits is 15120, while the sum is 35.

The spelling of 130561271621 in words is "one hundred thirty billion, five hundred sixty-one million, two hundred seventy-one thousand, six hundred twenty-one".