196303131281 has 2 divisors, whose sum is σ = 196303131282. Its totient is φ = 196303131280.

The previous prime is 196303131217. The next prime is 196303131341. The reversal of 196303131281 is 182131303691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135582286225 + 60720845056 = 368215^2 + 246416^2 .

It is a cyclic number.

It is not a de Polignac number, because 196303131281 - 2⁶ = 196303131217 is a prime.

It is a super-2 number, since 2×196303131281² (a number of 23 digits) contains 22 as substring.

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 (196303131581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98151565640 + 98151565641.

It is an arithmetic number, because the mean of its divisors is an integer number (98151565641).

Almost surely, 2^196303131281 is an apocalyptic number.

It is an amenable number.

196303131281 is a deficient number, since it is larger than the sum of its proper divisors (1).

196303131281 is an equidigital number, since it uses as much as digits as its factorization.

196303131281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 196303131281 in words is "one hundred ninety-six billion, three hundred three million, one hundred thirty-one thousand, two hundred eighty-one".