131012200330409 has 2 divisors, whose sum is σ = 131012200330410. Its totient is φ = 131012200330408.

The previous prime is 131012200330393. The next prime is 131012200330433. The reversal of 131012200330409 is 904033002210131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126485944080409 + 4526256250000 = 11246597^2 + 2127500^2 .

It is a cyclic number.

It is not a de Polignac number, because 131012200330409 - 2⁴ = 131012200330393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (131012200339409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65506100165204 + 65506100165205.

It is an arithmetic number, because the mean of its divisors is an integer number (65506100165205).

Almost surely, 2^{131012200330409} is an apocalyptic number.

It is an amenable number.

131012200330409 is a deficient number, since it is larger than the sum of its proper divisors (1).

131012200330409 is an equidigital number, since it uses as much as digits as its factorization.

131012200330409 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 29.

The spelling of 131012200330409 in words is "one hundred thirty-one trillion, twelve billion, two hundred million, three hundred thirty thousand, four hundred nine".