421304011 has 2 divisors, whose sum is σ = 421304012. Its totient is φ = 421304010.

The previous prime is 421303997. The next prime is 421304021. The reversal of 421304011 is 110403124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 421304011 - 2⁹ = 421303499 is a prime.

It is not a weakly prime, because it can be changed into another prime (421304021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210652005 + 210652006.

It is an arithmetic number, because the mean of its divisors is an integer number (210652006).

Almost surely, 2^421304011 is an apocalyptic number.

421304011 is a deficient number, since it is larger than the sum of its proper divisors (1).

421304011 is an equidigital number, since it uses as much as digits as its factorization.

421304011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 421304011 is about 20525.6914865249. The cubic root of 421304011 is about 749.6614833798.

Adding to 421304011 its reverse (110403124), we get a palindrome (531707135).

The spelling of 421304011 in words is "four hundred twenty-one million, three hundred four thousand, eleven".