423342043 has 2 divisors, whose sum is σ = 423342044. Its totient is φ = 423342042.

The previous prime is 423342037. The next prime is 423342103. The reversal of 423342043 is 340243324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423342043 - 2⁵ = 423342011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423341999 and 423342017.

It is not a weakly prime, because it can be changed into another prime (423342443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211671021 + 211671022.

It is an arithmetic number, because the mean of its divisors is an integer number (211671022).

Almost surely, 2^423342043 is an apocalyptic number.

423342043 is a deficient number, since it is larger than the sum of its proper divisors (1).

423342043 is an equidigital number, since it uses as much as digits as its factorization.

423342043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 25.

The square root of 423342043 is about 20575.2774707900. The cubic root of 423342043 is about 750.8683530441.

Adding to 423342043 its reverse (340243324), we get a palindrome (763585367).

The spelling of 423342043 in words is "four hundred twenty-three million, three hundred forty-two thousand, forty-three".