23111220344189 has 2 divisors, whose sum is σ = 23111220344190. Its totient is φ = 23111220344188.

The previous prime is 23111220344167. The next prime is 23111220344263. The reversal of 23111220344189 is 98144302211132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22587539443225 + 523680900964 = 4752635^2 + 723658^2 .

It is a cyclic number.

It is not a de Polignac number, because 23111220344189 - 2²⁴ = 23111203566973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23111220344159) 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, 11555610172094 + 11555610172095.

It is an arithmetic number, because the mean of its divisors is an integer number (11555610172095).

Almost surely, 2^{23111220344189} is an apocalyptic number.

It is an amenable number.

23111220344189 is a deficient number, since it is larger than the sum of its proper divisors (1).

23111220344189 is an equidigital number, since it uses as much as digits as its factorization.

23111220344189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 41.

The spelling of 23111220344189 in words is "twenty-three trillion, one hundred eleven billion, two hundred twenty million, three hundred forty-four thousand, one hundred eighty-nine".