421310611 has 2 divisors, whose sum is σ = 421310612. Its totient is φ = 421310610.

The previous prime is 421310537. The next prime is 421310633. The reversal of 421310611 is 116013124.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421310611 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (421310651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210655305 + 210655306.

It is an arithmetic number, because the mean of its divisors is an integer number (210655306).

Almost surely, 2^421310611 is an apocalyptic number.

421310611 is a deficient number, since it is larger than the sum of its proper divisors (1).

421310611 is an equidigital number, since it uses as much as digits as its factorization.

421310611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 421310611 is about 20525.8522600159. The cubic root of 421310611 is about 749.6653980035.

Adding to 421310611 its reverse (116013124), we get a palindrome (537323735).

The spelling of 421310611 in words is "four hundred twenty-one million, three hundred ten thousand, six hundred eleven".