21843102320419 has 2 divisors, whose sum is σ = 21843102320420. Its totient is φ = 21843102320418.

The previous prime is 21843102320329. The next prime is 21843102320441. The reversal of 21843102320419 is 91402320134812.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21843102320419 - 2²⁷ = 21842968102691 is a prime.

It is a super-2 number, since 2×21843102320419² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21843102320449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10921551160209 + 10921551160210.

It is an arithmetic number, because the mean of its divisors is an integer number (10921551160210).

Almost surely, 2^{21843102320419} is an apocalyptic number.

21843102320419 is a deficient number, since it is larger than the sum of its proper divisors (1).

21843102320419 is an equidigital number, since it uses as much as digits as its factorization.

21843102320419 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 40.

The spelling of 21843102320419 in words is "twenty-one trillion, eight hundred forty-three billion, one hundred two million, three hundred twenty thousand, four hundred nineteen".