343355553343 has 32 divisors (see below), whose sum is σ = 396674611200. Its totient is φ = 294302332800.

The previous prime is 343355553341. The next prime is 343355553353.

343355553343 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 343355553343 - 2¹ = 343355553341 is a prime.

It is a super-2 number, since 2×343355553343² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 343355553293 and 343355553302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343355553341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2641330 + ... + 2768272.

It is an arithmetic number, because the mean of its divisors is an integer number (12396081600).

Almost surely, 2^343355553343 is an apocalyptic number.

343355553343 is a deficient number, since it is larger than the sum of its proper divisors (53319057857).

343355553343 is a wasteful number, since it uses less digits than its factorization.

343355553343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127183.

The product of its digits is 7290000, while the sum is 46.

It can be divided in two parts, 343355 and 553343, that added together give a palindrome (896698).

The spelling of 343355553343 in words is "three hundred forty-three billion, three hundred fifty-five million, five hundred fifty-three thousand, three hundred forty-three".