131203003032181 has 2 divisors, whose sum is σ = 131203003032182. Its totient is φ = 131203003032180.

The previous prime is 131203003032173. The next prime is 131203003032203. The reversal of 131203003032181 is 181230300302131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111182157047025 + 20020845985156 = 10544295^2 + 4474466^2 .

It is an emirp because it is prime and its reverse (181230300302131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131203003032181 - 2³ = 131203003032173 is a prime.

It is a super-2 number, since 2×131203003032181² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131203003039181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65601501516090 + 65601501516091.

It is an arithmetic number, because the mean of its divisors is an integer number (65601501516091).

Almost surely, 2^{131203003032181} is an apocalyptic number.

It is an amenable number.

131203003032181 is a deficient number, since it is larger than the sum of its proper divisors (1).

131203003032181 is an equidigital number, since it uses as much as digits as its factorization.

131203003032181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 131203003032181 in words is "one hundred thirty-one trillion, two hundred three billion, three million, thirty-two thousand, one hundred eighty-one".