20100132209 has 2 divisors, whose sum is σ = 20100132210. Its totient is φ = 20100132208.

The previous prime is 20100132179. The next prime is 20100132211. The reversal of 20100132209 is 90223100102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19730416225 + 369715984 = 140465^2 + 19228^2 .

It is a cyclic number.

It is not a de Polignac number, because 20100132209 - 2³² = 15805164913 is a prime.

Together with 20100132211, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20100131209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050066104 + 10050066105.

It is an arithmetic number, because the mean of its divisors is an integer number (10050066105).

Almost surely, 2^20100132209 is an apocalyptic number.

It is an amenable number.

20100132209 is a deficient number, since it is larger than the sum of its proper divisors (1).

20100132209 is an equidigital number, since it uses as much as digits as its factorization.

20100132209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The spelling of 20100132209 in words is "twenty billion, one hundred million, one hundred thirty-two thousand, two hundred nine".