432421111 has 2 divisors, whose sum is σ = 432421112. Its totient is φ = 432421110.

The previous prime is 432421051. The next prime is 432421141. The reversal of 432421111 is 111124234.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 432421111 - 2⁷ = 432420983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (432421141) 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, 216210555 + 216210556.

It is an arithmetic number, because the mean of its divisors is an integer number (216210556).

Almost surely, 2^432421111 is an apocalyptic number.

432421111 is a deficient number, since it is larger than the sum of its proper divisors (1).

432421111 is an equidigital number, since it uses as much as digits as its factorization.

432421111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 19.

The square root of 432421111 is about 20794.7375794935. The cubic root of 432421111 is about 756.1981828577.

Adding to 432421111 its reverse (111124234), we get a palindrome (543545345).

The spelling of 432421111 in words is "four hundred thirty-two million, four hundred twenty-one thousand, one hundred eleven".