20143420342223 has 2 divisors, whose sum is σ = 20143420342224. Its totient is φ = 20143420342222.

The previous prime is 20143420342211. The next prime is 20143420342261. The reversal of 20143420342223 is 32224302434102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20143420342223 - 2¹⁶ = 20143420276687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20143420342223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20143420347223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10071710171111 + 10071710171112.

It is an arithmetic number, because the mean of its divisors is an integer number (10071710171112).

Almost surely, 2^{20143420342223} is an apocalyptic number.

20143420342223 is a deficient number, since it is larger than the sum of its proper divisors (1).

20143420342223 is an equidigital number, since it uses as much as digits as its factorization.

20143420342223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 20143420342223 its reverse (32224302434102), we get a palindrome (52367722776325).

The spelling of 20143420342223 in words is "twenty trillion, one hundred forty-three billion, four hundred twenty million, three hundred forty-two thousand, two hundred twenty-three".