423340432343 has 2 divisors, whose sum is σ = 423340432344. Its totient is φ = 423340432342.

The previous prime is 423340432321. The next prime is 423340432387. The reversal of 423340432343 is 343234043324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423340432343 - 2⁶ = 423340432279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423340432643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211670216171 + 211670216172.

It is an arithmetic number, because the mean of its divisors is an integer number (211670216172).

Almost surely, 2^423340432343 is an apocalyptic number.

423340432343 is a deficient number, since it is larger than the sum of its proper divisors (1).

423340432343 is an equidigital number, since it uses as much as digits as its factorization.

423340432343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 35.

Adding to 423340432343 its reverse (343234043324), we get a palindrome (766574475667).

The spelling of 423340432343 in words is "four hundred twenty-three billion, three hundred forty million, four hundred thirty-two thousand, three hundred forty-three".