130521310505 has 16 divisors (see below), whose sum is σ = 167253120000. Its totient is φ = 97564313280.

The previous prime is 130521310489. The next prime is 130521310511. The reversal of 130521310505 is 505013125031.

It is a happy number.

It is not a de Polignac number, because 130521310505 - 2⁴ = 130521310489 is a prime.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 14514005 + ... + 14522994.

It is an arithmetic number, because the mean of its divisors is an integer number (10453320000).

Almost surely, 2^130521310505 is an apocalyptic number.

It is an amenable number.

130521310505 is a deficient number, since it is larger than the sum of its proper divisors (36731809495).

130521310505 is a wasteful number, since it uses less digits than its factorization.

130521310505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29037064.

The product of its (nonzero) digits is 2250, while the sum is 26.

Adding to 130521310505 its reverse (505013125031), we get a palindrome (635534435536).

The spelling of 130521310505 in words is "one hundred thirty billion, five hundred twenty-one million, three hundred ten thousand, five hundred five".