131530302505 has 32 divisors (see below), whose sum is σ = 180756946944. Its totient is φ = 90006183936.

The previous prime is 131530302451. The next prime is 131530302511. The reversal of 131530302505 is 505203035131.

It is a cyclic number.

It is not a de Polignac number, because 131530302505 - 2⁹ = 131530301993 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 48949272 + ... + 48951958.

It is an arithmetic number, because the mean of its divisors is an integer number (5648654592).

Almost surely, 2^131530302505 is an apocalyptic number.

It is an amenable number.

131530302505 is a deficient number, since it is larger than the sum of its proper divisors (49226644439).

131530302505 is a wasteful number, since it uses less digits than its factorization.

131530302505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5065.

The product of its (nonzero) digits is 6750, while the sum is 28.

Adding to 131530302505 its reverse (505203035131), we get a palindrome (636733337636).

The spelling of 131530302505 in words is "one hundred thirty-one billion, five hundred thirty million, three hundred two thousand, five hundred five".