131344353555533 has 2 divisors, whose sum is σ = 131344353555534. Its totient is φ = 131344353555532.

The previous prime is 131344353555449. The next prime is 131344353555601. The reversal of 131344353555533 is 335555353443131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92487419893444 + 38856933662089 = 9617038^2 + 6233533^2 .

It is a cyclic number.

It is not a de Polignac number, because 131344353555533 - 2¹⁸ = 131344353293389 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131344353555733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65672176777766 + 65672176777767.

It is an arithmetic number, because the mean of its divisors is an integer number (65672176777767).

Almost surely, 2^{131344353555533} is an apocalyptic number.

It is an amenable number.

131344353555533 is a deficient number, since it is larger than the sum of its proper divisors (1).

131344353555533 is an equidigital number, since it uses as much as digits as its factorization.

131344353555533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36450000, while the sum is 53.

The spelling of 131344353555533 in words is "one hundred thirty-one trillion, three hundred forty-four billion, three hundred fifty-three million, five hundred fifty-five thousand, five hundred thirty-three".