343220200420111 has 4 divisors (see below), whose sum is σ = 392251657622992. Its totient is φ = 294188743217232.

The previous prime is 343220200420073. The next prime is 343220200420129. The reversal of 343220200420111 is 111024002022343.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 343220200420111 - 2¹⁵ = 343220200387343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343220200420211) 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 in 3 ways as a sum of consecutive naturals, for example, 24515728601430 + ... + 24515728601443.

It is an arithmetic number, because the mean of its divisors is an integer number (98062914405748).

Almost surely, 2^{343220200420111} is an apocalyptic number.

343220200420111 is a deficient number, since it is larger than the sum of its proper divisors (49031457202881).

343220200420111 is an equidigital number, since it uses as much as digits as its factorization.

343220200420111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49031457202880.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 343220200420111 its reverse (111024002022343), we get a palindrome (454244202442454).

The spelling of 343220200420111 in words is "three hundred forty-three trillion, two hundred twenty billion, two hundred million, four hundred twenty thousand, one hundred eleven".