42430351243 has 4 divisors (see below), whose sum is σ = 48491830000. Its totient is φ = 36368872488.

The previous prime is 42430351219. The next prime is 42430351247. The reversal of 42430351243 is 34215303424.

It is a happy number.

42430351243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42430351243 - 2¹⁷ = 42430220171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42430351247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3030739368 + ... + 3030739381.

It is an arithmetic number, because the mean of its divisors is an integer number (12122957500).

Almost surely, 2^42430351243 is an apocalyptic number.

42430351243 is a deficient number, since it is larger than the sum of its proper divisors (6061478757).

42430351243 is an equidigital number, since it uses as much as digits as its factorization.

42430351243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6061478756.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 42430351243 its reverse (34215303424), we get a palindrome (76645654667).

The spelling of 42430351243 in words is "forty-two billion, four hundred thirty million, three hundred fifty-one thousand, two hundred forty-three".