131403330361 has 2 divisors, whose sum is σ = 131403330362. Its totient is φ = 131403330360.

The previous prime is 131403330347. The next prime is 131403330391. The reversal of 131403330361 is 163033304131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130515290361 + 888040000 = 361269^2 + 29800^2 .

It is a cyclic number.

It is not a de Polignac number, because 131403330361 - 2³⁵ = 97043591993 is a prime.

It is not a weakly prime, because it can be changed into another prime (131403330341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65701665180 + 65701665181.

It is an arithmetic number, because the mean of its divisors is an integer number (65701665181).

Almost surely, 2^131403330361 is an apocalyptic number.

It is an amenable number.

131403330361 is a deficient number, since it is larger than the sum of its proper divisors (1).

131403330361 is an equidigital number, since it uses as much as digits as its factorization.

131403330361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 131403330361 its reverse (163033304131), we get a palindrome (294436634492).

The spelling of 131403330361 in words is "one hundred thirty-one billion, four hundred three million, three hundred thirty thousand, three hundred sixty-one".