23121520241189 has 2 divisors, whose sum is σ = 23121520241190. Its totient is φ = 23121520241188.

The previous prime is 23121520241177. The next prime is 23121520241233. The reversal of 23121520241189 is 98114202512132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16003120152100 + 7118400089089 = 4000390^2 + 2668033^2 .

It is a cyclic number.

It is not a de Polignac number, because 23121520241189 - 2⁴⁰ = 22022008613413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23121520241129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11560760120594 + 11560760120595.

It is an arithmetic number, because the mean of its divisors is an integer number (11560760120595).

Almost surely, 2^{23121520241189} is an apocalyptic number.

It is an amenable number.

23121520241189 is a deficient number, since it is larger than the sum of its proper divisors (1).

23121520241189 is an equidigital number, since it uses as much as digits as its factorization.

23121520241189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 41.

The spelling of 23121520241189 in words is "twenty-three trillion, one hundred twenty-one billion, five hundred twenty million, two hundred forty-one thousand, one hundred eighty-nine".