130520305125 has 128 divisors (see below), whose sum is σ = 287783608320. Its totient is φ = 57071995200.

The previous prime is 130520305103. The next prime is 130520305127. The reversal of 130520305125 is 521503025031.

It is a happy number.

130520305125 is a `hidden beast` number, since 13 + 0 + 520 + 3 + 0 + 5 + 125 = 666.

It is not a de Polignac number, because 130520305125 - 2⁵ = 130520305093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130520305127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 423274 + ... + 663476.

It is an arithmetic number, because the mean of its divisors is an integer number (2248309440).

Almost surely, 2^130520305125 is an apocalyptic number.

130520305125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130520305125 is an abundant number, since it is smaller than the sum of its proper divisors (157263303195).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130520305125 is a wasteful number, since it uses less digits than its factorization.

130520305125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240257 (or 240241 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The spelling of 130520305125 in words is "one hundred thirty billion, five hundred twenty million, three hundred five thousand, one hundred twenty-five".