384823134130121 has 2 divisors, whose sum is σ = 384823134130122. Its totient is φ = 384823134130120.

The previous prime is 384823134130109. The next prime is 384823134130241. The reversal of 384823134130121 is 121031431328483.

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., 378549166195600 + 6273967934521 = 19456340^2 + 2504789^2 .

It is a cyclic number.

It is not a de Polignac number, because 384823134130121 - 2²⁶ = 384823067021257 is a prime.

It is not a weakly prime, because it can be changed into another prime (384823134100121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192411567065060 + 192411567065061.

It is an arithmetic number, because the mean of its divisors is an integer number (192411567065061).

Almost surely, 2^{384823134130121} is an apocalyptic number.

It is an amenable number.

384823134130121 is a deficient number, since it is larger than the sum of its proper divisors (1).

384823134130121 is an equidigital number, since it uses as much as digits as its factorization.

384823134130121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 384823134130121 in words is "three hundred eighty-four trillion, eight hundred twenty-three billion, one hundred thirty-four million, one hundred thirty thousand, one hundred twenty-one".