343563321055 has 4 divisors (see below), whose sum is σ = 412275985272. Its totient is φ = 274850656840.

The previous prime is 343563321047. The next prime is 343563321061. The reversal of 343563321055 is 550123365343.

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

It is not a de Polignac number, because 343563321055 - 2³ = 343563321047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 343563320999 and 343563321017.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34356332101 + ... + 34356332110.

It is an arithmetic number, because the mean of its divisors is an integer number (103068996318).

Almost surely, 2^343563321055 is an apocalyptic number.

343563321055 is a deficient number, since it is larger than the sum of its proper divisors (68712664217).

343563321055 is an equidigital number, since it uses as much as digits as its factorization.

343563321055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68712664216.

The product of its (nonzero) digits is 486000, while the sum is 40.

Adding to 343563321055 its reverse (550123365343), we get a palindrome (893686686398).

The spelling of 343563321055 in words is "three hundred forty-three billion, five hundred sixty-three million, three hundred twenty-one thousand, fifty-five".