42004220243 has 2 divisors, whose sum is σ = 42004220244. Its totient is φ = 42004220242.

The previous prime is 42004220231. The next prime is 42004220263. The reversal of 42004220243 is 34202240024.

42004220243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42004220243 - 2⁶ = 42004220179 is a prime.

It is not a weakly prime, because it can be changed into another prime (42004220213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21002110121 + 21002110122.

It is an arithmetic number, because the mean of its divisors is an integer number (21002110122).

Almost surely, 2^42004220243 is an apocalyptic number.

42004220243 is a deficient number, since it is larger than the sum of its proper divisors (1).

42004220243 is an equidigital number, since it uses as much as digits as its factorization.

42004220243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 42004220243 its reverse (34202240024), we get a palindrome (76206460267).

The spelling of 42004220243 in words is "forty-two billion, four million, two hundred twenty thousand, two hundred forty-three".