131343232021333 has 2 divisors, whose sum is σ = 131343232021334. Its totient is φ = 131343232021332.

The previous prime is 131343232021321. The next prime is 131343232021363. The reversal of 131343232021333 is 333120232343131.

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., 112717249118244 + 18625982903089 = 10616838^2 + 4315783^2 .

It is a cyclic number.

It is not a de Polignac number, because 131343232021333 - 2³⁷ = 131205793067861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131343232021303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65671616010666 + 65671616010667.

It is an arithmetic number, because the mean of its divisors is an integer number (65671616010667).

Almost surely, 2^{131343232021333} is an apocalyptic number.

It is an amenable number.

131343232021333 is a deficient number, since it is larger than the sum of its proper divisors (1).

131343232021333 is an equidigital number, since it uses as much as digits as its factorization.

131343232021333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 34.

Adding to 131343232021333 its reverse (333120232343131), we get a palindrome (464463464364464).

The spelling of 131343232021333 in words is "one hundred thirty-one trillion, three hundred forty-three billion, two hundred thirty-two million, twenty-one thousand, three hundred thirty-three".