42430340233 has 2 divisors, whose sum is σ = 42430340234. Its totient is φ = 42430340232.

The previous prime is 42430340179. The next prime is 42430340263. The reversal of 42430340233 is 33204303424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25603840144 + 16826500089 = 160012^2 + 129717^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42430340233 is a prime.

It is not a weakly prime, because it can be changed into another prime (42430340263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21215170116 + 21215170117.

It is an arithmetic number, because the mean of its divisors is an integer number (21215170117).

Almost surely, 2^42430340233 is an apocalyptic number.

It is an amenable number.

42430340233 is a deficient number, since it is larger than the sum of its proper divisors (1).

42430340233 is an equidigital number, since it uses as much as digits as its factorization.

42430340233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 28.

Adding to 42430340233 its reverse (33204303424), we get a palindrome (75634643657).

The spelling of 42430340233 in words is "forty-two billion, four hundred thirty million, three hundred forty thousand, two hundred thirty-three".