420340430011 has 2 divisors, whose sum is σ = 420340430012. Its totient is φ = 420340430010.

The previous prime is 420340430009. The next prime is 420340430087. The reversal of 420340430011 is 110034043024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420340430011 - 2¹ = 420340430009 is a prime.

Together with 420340430009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (420340430911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210170215005 + 210170215006.

It is an arithmetic number, because the mean of its divisors is an integer number (210170215006).

Almost surely, 2^420340430011 is an apocalyptic number.

420340430011 is a deficient number, since it is larger than the sum of its proper divisors (1).

420340430011 is an equidigital number, since it uses as much as digits as its factorization.

420340430011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 420340430011 its reverse (110034043024), we get a palindrome (530374473035).

The spelling of 420340430011 in words is "four hundred twenty billion, three hundred forty million, four hundred thirty thousand, eleven".