131352513209 has 2 divisors, whose sum is σ = 131352513210. Its totient is φ = 131352513208.

The previous prime is 131352513169. The next prime is 131352513221. The reversal of 131352513209 is 902315253131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86927677225 + 44424835984 = 294835^2 + 210772^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131352513209 is a prime.

It is not a weakly prime, because it can be changed into another prime (131352593209) 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 as a sum of consecutive naturals, namely, 65676256604 + 65676256605.

It is an arithmetic number, because the mean of its divisors is an integer number (65676256605).

Almost surely, 2^131352513209 is an apocalyptic number.

It is an amenable number.

131352513209 is a deficient number, since it is larger than the sum of its proper divisors (1).

131352513209 is an equidigital number, since it uses as much as digits as its factorization.

131352513209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24300, while the sum is 35.

The spelling of 131352513209 in words is "one hundred thirty-one billion, three hundred fifty-two million, five hundred thirteen thousand, two hundred nine".