23120101020209 has 2 divisors, whose sum is σ = 23120101020210. Its totient is φ = 23120101020208.

The previous prime is 23120101020187. The next prime is 23120101020251. The reversal of 23120101020209 is 90202010102132.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23119777739809 + 323280400 = 4808303^2 + 17980^2 .

It is a cyclic number.

It is not a de Polignac number, because 23120101020209 - 2¹² = 23120101016113 is a prime.

It is not a weakly prime, because it can be changed into another prime (23120101025209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11560050510104 + 11560050510105.

It is an arithmetic number, because the mean of its divisors is an integer number (11560050510105).

Almost surely, 2^{23120101020209} is an apocalyptic number.

It is an amenable number.

23120101020209 is a deficient number, since it is larger than the sum of its proper divisors (1).

23120101020209 is an equidigital number, since it uses as much as digits as its factorization.

23120101020209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 23120101020209 in words is "twenty-three trillion, one hundred twenty billion, one hundred one million, twenty thousand, two hundred nine".