343311204321 has 12 divisors (see below), whose sum is σ = 498117704448. Its totient is φ = 227847793464.

The previous prime is 343311204317. The next prime is 343311204343. The reversal of 343311204321 is 123402113343.

It is a happy number.

343311204321 is a `hidden beast` number, since 3 + 4 + 3 + 311 + 20 + 4 + 321 = 666.

It is not a de Polignac number, because 343311204321 - 2² = 343311204317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (343311204311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85526445 + ... + 85530458.

It is an arithmetic number, because the mean of its divisors is an integer number (41509808704).

Almost surely, 2^343311204321 is an apocalyptic number.

It is an amenable number.

343311204321 is a deficient number, since it is larger than the sum of its proper divisors (154806500127).

343311204321 is a wasteful number, since it uses less digits than its factorization.

343311204321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171057132 (or 171057129 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 343311204321 its reverse (123402113343), we get a palindrome (466713317664).

The spelling of 343311204321 in words is "three hundred forty-three billion, three hundred eleven million, two hundred four thousand, three hundred twenty-one".