42020244263 has 2 divisors, whose sum is σ = 42020244264. Its totient is φ = 42020244262.

The previous prime is 42020244223. The next prime is 42020244283. The reversal of 42020244263 is 36244202024.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42020244263 - 2⁶ = 42020244199 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 (42020244223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21010122131 + 21010122132.

It is an arithmetic number, because the mean of its divisors is an integer number (21010122132).

Almost surely, 2^42020244263 is an apocalyptic number.

42020244263 is a deficient number, since it is larger than the sum of its proper divisors (1).

42020244263 is an equidigital number, since it uses as much as digits as its factorization.

42020244263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 42020244263 its reverse (36244202024), we get a palindrome (78264446287).

The spelling of 42020244263 in words is "forty-two billion, twenty million, two hundred forty-four thousand, two hundred sixty-three".