343420011141221 has 16 divisors (see below), whose sum is σ = 409590446352384. Its totient is φ = 281530064662704.

The previous prime is 343420011141169. The next prime is 343420011141223. The reversal of 343420011141221 is 122141110024343.

It is a cyclic number.

It is not a de Polignac number, because 343420011141221 - 2⁶ = 343420011141157 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 (343420011141223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118578395 + ... + 121440008.

It is an arithmetic number, because the mean of its divisors is an integer number (25599402897024).

Almost surely, 2^{343420011141221} is an apocalyptic number.

It is an amenable number.

343420011141221 is a deficient number, since it is larger than the sum of its proper divisors (66170435211163).

343420011141221 is a wasteful number, since it uses less digits than its factorization.

343420011141221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240027320.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 343420011141221 its reverse (122141110024343), we get a palindrome (465561121165564).

The spelling of 343420011141221 in words is "three hundred forty-three trillion, four hundred twenty billion, eleven million, one hundred forty-one thousand, two hundred twenty-one".