421311411343 has 2 divisors, whose sum is σ = 421311411344. Its totient is φ = 421311411342.

The previous prime is 421311411331. The next prime is 421311411379. The reversal of 421311411343 is 343114113124.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421311411343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421311411643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210655705671 + 210655705672.

It is an arithmetic number, because the mean of its divisors is an integer number (210655705672).

Almost surely, 2^421311411343 is an apocalyptic number.

421311411343 is a deficient number, since it is larger than the sum of its proper divisors (1).

421311411343 is an equidigital number, since it uses as much as digits as its factorization.

421311411343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 28.

Adding to 421311411343 its reverse (343114113124), we get a palindrome (764425524467).

The spelling of 421311411343 in words is "four hundred twenty-one billion, three hundred eleven million, four hundred eleven thousand, three hundred forty-three".