20043234239999 has 2 divisors, whose sum is σ = 20043234240000. Its totient is φ = 20043234239998.

The previous prime is 20043234239953. The next prime is 20043234240067. The reversal of 20043234239999 is 99993243234002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20043234239999 is a prime.

It is a super-2 number, since 2×20043234239999² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20043234239909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021617119999 + 10021617120000.

It is an arithmetic number, because the mean of its divisors is an integer number (10021617120000).

Almost surely, 2^{20043234239999} is an apocalyptic number.

20043234239999 is a deficient number, since it is larger than the sum of its proper divisors (1).

20043234239999 is an equidigital number, since it uses as much as digits as its factorization.

20043234239999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22674816, while the sum is 59.

The spelling of 20043234239999 in words is "twenty trillion, forty-three billion, two hundred thirty-four million, two hundred thirty-nine thousand, nine hundred ninety-nine".