133321230209 has 2 divisors, whose sum is σ = 133321230210. Its totient is φ = 133321230208.

The previous prime is 133321230197. The next prime is 133321230233. The reversal of 133321230209 is 902032123331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117256935184 + 16064295025 = 342428^2 + 126745^2 .

It is an emirp because it is prime and its reverse (902032123331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133321230209 - 2¹⁶ = 133321164673 is a prime.

It is not a weakly prime, because it can be changed into another prime (133321230109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66660615104 + 66660615105.

It is an arithmetic number, because the mean of its divisors is an integer number (66660615105).

Almost surely, 2^133321230209 is an apocalyptic number.

It is an amenable number.

133321230209 is a deficient number, since it is larger than the sum of its proper divisors (1).

133321230209 is an equidigital number, since it uses as much as digits as its factorization.

133321230209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 29.

The spelling of 133321230209 in words is "one hundred thirty-three billion, three hundred twenty-one million, two hundred thirty thousand, two hundred nine".