343121343 has 4 divisors (see below), whose sum is σ = 457495128. Its totient is φ = 228747560.

The previous prime is 343121329. The next prime is 343121347.

343121343 is nontrivially palindromic in base 10.

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 343121343 - 2¹³ = 343113151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343121347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57186888 + ... + 57186893.

It is an arithmetic number, because the mean of its divisors is an integer number (114373782).

Almost surely, 2^343121343 is an apocalyptic number.

343121343 is a deficient number, since it is larger than the sum of its proper divisors (114373785).

343121343 is a wasteful number, since it uses less digits than its factorization.

343121343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114373784.

The product of its digits is 2592, while the sum is 24.

The square root of 343121343 is about 18523.5348408450. The cubic root of 343121343 is about 700.0825365263.

The spelling of 343121343 in words is "three hundred forty-three million, one hundred twenty-one thousand, three hundred forty-three".