133333209999973 has 2 divisors, whose sum is σ = 133333209999974. Its totient is φ = 133333209999972.

The previous prime is 133333209999967. The next prime is 133333210000031. The reversal of 133333209999973 is 379999902333331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75796403568769 + 57536806431204 = 8706113^2 + 7585302^2 .

It is a cyclic number.

It is not a de Polignac number, because 133333209999973 - 2⁹ = 133333209999461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133333209999896 and 133333209999905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133333209999943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66666604999986 + 66666604999987.

It is an arithmetic number, because the mean of its divisors is an integer number (66666604999987).

Almost surely, 2^{133333209999973} is an apocalyptic number.

It is an amenable number.

133333209999973 is a deficient number, since it is larger than the sum of its proper divisors (1).

133333209999973 is an equidigital number, since it uses as much as digits as its factorization.

133333209999973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 602654094, while the sum is 73.

The spelling of 133333209999973 in words is "one hundred thirty-three trillion, three hundred thirty-three billion, two hundred nine million, nine hundred ninety-nine thousand, nine hundred seventy-three".