343220052331 has 16 divisors (see below), whose sum is σ = 393856845984. Its totient is φ = 296282847744.

The previous prime is 343220052221. The next prime is 343220052353. The reversal of 343220052331 is 133250022343.

It is not a de Polignac number, because 343220052331 - 2¹⁵ = 343220019563 is a prime.

It is a super-2 number, since 2×343220052331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 343220052331.

It is not an unprimeable number, because it can be changed into a prime (343220050331) 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, 4911265 + ... + 4980658.

It is an arithmetic number, because the mean of its divisors is an integer number (24616052874).

Almost surely, 2^343220052331 is an apocalyptic number.

343220052331 is a deficient number, since it is larger than the sum of its proper divisors (50636793653).

343220052331 is a wasteful number, since it uses less digits than its factorization.

343220052331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9892110.

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 343220052331 its reverse (133250022343), we get a palindrome (476470074674).

The spelling of 343220052331 in words is "three hundred forty-three billion, two hundred twenty million, fifty-two thousand, three hundred thirty-one".