130521310506 has 24 divisors (see below), whose sum is σ = 282808546020. Its totient is φ = 43505199936.

The previous prime is 130521310489. The next prime is 130521310511. The reversal of 130521310506 is 605013125031.

130521310506 is a `hidden beast` number, since 1 + 30 + 521 + 3 + 105 + 0 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 88025549481 + 42495761025 = 296691^2 + 206145^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 130521310506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 300040 + ... + 592508.

Almost surely, 2^130521310506 is an apocalyptic number.

130521310506 is an abundant number, since it is smaller than the sum of its proper divisors (152287235514).

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

130521310506 is a wasteful number, since it uses less digits than its factorization.

130521310506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317270 (or 317267 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

Adding to 130521310506 its reverse (605013125031), we get a palindrome (735534435537).

The spelling of 130521310506 in words is "one hundred thirty billion, five hundred twenty-one million, three hundred ten thousand, five hundred six".