42520332443 has 2 divisors, whose sum is σ = 42520332444. Its totient is φ = 42520332442.

The previous prime is 42520332359. The next prime is 42520332467. The reversal of 42520332443 is 34423302524.

42520332443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42520332443 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (42520332143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21260166221 + 21260166222.

It is an arithmetic number, because the mean of its divisors is an integer number (21260166222).

Almost surely, 2^42520332443 is an apocalyptic number.

42520332443 is a deficient number, since it is larger than the sum of its proper divisors (1).

42520332443 is an equidigital number, since it uses as much as digits as its factorization.

42520332443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 32.

Adding to 42520332443 its reverse (34423302524), we get a palindrome (76943634967).

The spelling of 42520332443 in words is "forty-two billion, five hundred twenty million, three hundred thirty-two thousand, four hundred forty-three".