20043234240067 has 2 divisors, whose sum is σ = 20043234240068. Its totient is φ = 20043234240066.

The previous prime is 20043234239999. The next prime is 20043234240079. The reversal of 20043234240067 is 76004243234002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20043234240067 is a prime.

It is not a weakly prime, because it can be changed into another prime (20043234240767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021617120033 + 10021617120034.

It is an arithmetic number, because the mean of its divisors is an integer number (10021617120034).

Almost surely, 2^{20043234240067} is an apocalyptic number.

20043234240067 is a deficient number, since it is larger than the sum of its proper divisors (1).

20043234240067 is an equidigital number, since it uses as much as digits as its factorization.

20043234240067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 37.

Adding to 20043234240067 its reverse (76004243234002), we get a palindrome (96047477474069).

The spelling of 20043234240067 in words is "twenty trillion, forty-three billion, two hundred thirty-four million, two hundred forty thousand, sixty-seven".