130521310531 has 8 divisors (see below), whose sum is σ = 132386626800. Its totient is φ = 128664856320.

The previous prime is 130521310529. The next prime is 130521310571. The reversal of 130521310531 is 135013125031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130521310531 - 2¹ = 130521310529 is a prime.

It is a super-2 number, since 2×130521310531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130521310496 and 130521310505.

It is not an unprimeable number, because it can be changed into a prime (130521310511) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2185846 + ... + 2244763.

It is an arithmetic number, because the mean of its divisors is an integer number (16548328350).

Almost surely, 2^130521310531 is an apocalyptic number.

130521310531 is a deficient number, since it is larger than the sum of its proper divisors (1865316269).

130521310531 is an equidigital number, since it uses as much as digits as its factorization.

130521310531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4431029.

The product of its (nonzero) digits is 1350, while the sum is 25.

Adding to 130521310531 its reverse (135013125031), we get a palindrome (265534435562).

The spelling of 130521310531 in words is "one hundred thirty billion, five hundred twenty-one million, three hundred ten thousand, five hundred thirty-one".