343516521223 has 4 divisors (see below), whose sum is σ = 343570958928. Its totient is φ = 343462083520.

The previous prime is 343516521209. The next prime is 343516521239. The reversal of 343516521223 is 322125615343.

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 343516521223 - 2²⁵ = 343482966791 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 (343516521203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27209386 + ... + 27222007.

It is an arithmetic number, because the mean of its divisors is an integer number (85892739732).

Almost surely, 2^343516521223 is an apocalyptic number.

343516521223 is a deficient number, since it is larger than the sum of its proper divisors (54437705).

343516521223 is an equidigital number, since it uses as much as digits as its factorization.

343516521223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54437704.

The product of its digits is 129600, while the sum is 37.

The spelling of 343516521223 in words is "three hundred forty-three billion, five hundred sixteen million, five hundred twenty-one thousand, two hundred twenty-three".