131024033209 has 2 divisors, whose sum is σ = 131024033210. Its totient is φ = 131024033208.

The previous prime is 131024033197. The next prime is 131024033233. The reversal of 131024033209 is 902330420131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112260512809 + 18763520400 = 335053^2 + 136980^2 .

It is a cyclic number.

It is not a de Polignac number, because 131024033209 - 2⁷ = 131024033081 is a prime.

It is not a weakly prime, because it can be changed into another prime (131024033299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65512016604 + 65512016605.

It is an arithmetic number, because the mean of its divisors is an integer number (65512016605).

Almost surely, 2^131024033209 is an apocalyptic number.

It is an amenable number.

131024033209 is a deficient number, since it is larger than the sum of its proper divisors (1).

131024033209 is an equidigital number, since it uses as much as digits as its factorization.

131024033209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 131024033209 in words is "one hundred thirty-one billion, twenty-four million, thirty-three thousand, two hundred nine".