21114042421379 has 2 divisors, whose sum is σ = 21114042421380. Its totient is φ = 21114042421378.

The previous prime is 21114042421291. The next prime is 21114042421387. The reversal of 21114042421379 is 97312424041112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21114042421379 - 2¹⁶ = 21114042355843 is a prime.

It is not a weakly prime, because it can be changed into another prime (21114042421279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10557021210689 + 10557021210690.

It is an arithmetic number, because the mean of its divisors is an integer number (10557021210690).

Almost surely, 2^{21114042421379} is an apocalyptic number.

21114042421379 is a deficient number, since it is larger than the sum of its proper divisors (1).

21114042421379 is an equidigital number, since it uses as much as digits as its factorization.

21114042421379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 21114042421379 in words is "twenty-one trillion, one hundred fourteen billion, forty-two million, four hundred twenty-one thousand, three hundred seventy-nine".