131202201212009 has 2 divisors, whose sum is σ = 131202201212010. Its totient is φ = 131202201212008.

The previous prime is 131202201211987. The next prime is 131202201212051. The reversal of 131202201212009 is 900212102202131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96857877889600 + 34344323322409 = 9841640^2 + 5860403^2 .

It is a cyclic number.

It is not a de Polignac number, because 131202201212009 - 2²⁸ = 131201932776553 is a prime.

It is not a weakly prime, because it can be changed into another prime (131202201512009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65601100606004 + 65601100606005.

It is an arithmetic number, because the mean of its divisors is an integer number (65601100606005).

Almost surely, 2^{131202201212009} is an apocalyptic number.

It is an amenable number.

131202201212009 is a deficient number, since it is larger than the sum of its proper divisors (1).

131202201212009 is an equidigital number, since it uses as much as digits as its factorization.

131202201212009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 131202201212009 in words is "one hundred thirty-one trillion, two hundred two billion, two hundred one million, two hundred twelve thousand, nine".