423341111 has 2 divisors, whose sum is σ = 423341112. Its totient is φ = 423341110.

The previous prime is 423341099. The next prime is 423341117. The reversal of 423341111 is 111143324.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423341111 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423341117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211670555 + 211670556.

It is an arithmetic number, because the mean of its divisors is an integer number (211670556).

Almost surely, 2^423341111 is an apocalyptic number.

423341111 is a deficient number, since it is larger than the sum of its proper divisors (1).

423341111 is an equidigital number, since it uses as much as digits as its factorization.

423341111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 20.

The square root of 423341111 is about 20575.2548222373. The cubic root of 423341111 is about 750.8678020241.

Adding to 423341111 its reverse (111143324), we get a palindrome (534484435).

It can be divided in two parts, 42334 and 1111, that multiplied together give a palindrome (47033074).

The spelling of 423341111 in words is "four hundred twenty-three million, three hundred forty-one thousand, one hundred eleven".