133021111101209 has 2 divisors, whose sum is σ = 133021111101210. Its totient is φ = 133021111101208.

The previous prime is 133021111101161. The next prime is 133021111101323. The reversal of 133021111101209 is 902101111120331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76108088760025 + 56913022341184 = 8723995^2 + 7544072^2 .

It is a cyclic number.

It is not a de Polignac number, because 133021111101209 - 2⁴⁴ = 115428925056793 is a prime.

It is not a weakly prime, because it can be changed into another prime (133021111104209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66510555550604 + 66510555550605.

It is an arithmetic number, because the mean of its divisors is an integer number (66510555550605).

Almost surely, 2^{133021111101209} is an apocalyptic number.

It is an amenable number.

133021111101209 is a deficient number, since it is larger than the sum of its proper divisors (1).

133021111101209 is an equidigital number, since it uses as much as digits as its factorization.

133021111101209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 26.

The spelling of 133021111101209 in words is "one hundred thirty-three trillion, twenty-one billion, one hundred eleven million, one hundred one thousand, two hundred nine".