133333213321109 has 2 divisors, whose sum is σ = 133333213321110. Its totient is φ = 133333213321108.

The previous prime is 133333213320961. The next prime is 133333213321207. The reversal of 133333213321109 is 901123312333331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133080911044900 + 252302276209 = 11536070^2 + 502297^2 .

It is an emirp because it is prime and its reverse (901123312333331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133333213321109 - 2²⁸ = 133332944885653 is a prime.

It is a super-3 number, since 3×133333213321109³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133333213327109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66666606660554 + 66666606660555.

It is an arithmetic number, because the mean of its divisors is an integer number (66666606660555).

Almost surely, 2^{133333213321109} is an apocalyptic number.

It is an amenable number.

133333213321109 is a deficient number, since it is larger than the sum of its proper divisors (1).

133333213321109 is an equidigital number, since it uses as much as digits as its factorization.

133333213321109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78732, while the sum is 38.

The spelling of 133333213321109 in words is "one hundred thirty-three trillion, three hundred thirty-three billion, two hundred thirteen million, three hundred twenty-one thousand, one hundred nine".