20839873233043 has 2 divisors, whose sum is σ = 20839873233044. Its totient is φ = 20839873233042.

The previous prime is 20839873233041. The next prime is 20839873233077. The reversal of 20839873233043 is 34033237893802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20839873233043 - 2¹ = 20839873233041 is a prime.

Together with 20839873233041, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20839873233041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10419936616521 + 10419936616522.

It is an arithmetic number, because the mean of its divisors is an integer number (10419936616522).

Almost surely, 2^{20839873233043} is an apocalyptic number.

20839873233043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20839873233043 is an equidigital number, since it uses as much as digits as its factorization.

20839873233043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15676416, while the sum is 55.

The spelling of 20839873233043 in words is "twenty trillion, eight hundred thirty-nine billion, eight hundred seventy-three million, two hundred thirty-three thousand, forty-three".