20231240220143 has 2 divisors, whose sum is σ = 20231240220144. Its totient is φ = 20231240220142.

The previous prime is 20231240220137. The next prime is 20231240220151. The reversal of 20231240220143 is 34102204213202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20231240220143 - 2³⁴ = 20214060350959 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20231240223143) 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, 10115620110071 + 10115620110072.

It is an arithmetic number, because the mean of its divisors is an integer number (10115620110072).

Almost surely, 2^{20231240220143} is an apocalyptic number.

20231240220143 is a deficient number, since it is larger than the sum of its proper divisors (1).

20231240220143 is an equidigital number, since it uses as much as digits as its factorization.

20231240220143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 20231240220143 its reverse (34102204213202), we get a palindrome (54333444433345).

The spelling of 20231240220143 in words is "twenty trillion, two hundred thirty-one billion, two hundred forty million, two hundred twenty thousand, one hundred forty-three".