343012303 has 4 divisors (see below), whose sum is σ = 354077248. Its totient is φ = 331947360.

The previous prime is 343012279. The next prime is 343012331. The reversal of 343012303 is 303210343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303210343 = 11321 ⋅26783.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343012303 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343012393) 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, 5532426 + ... + 5532487.

It is an arithmetic number, because the mean of its divisors is an integer number (88519312).

Almost surely, 2^343012303 is an apocalyptic number.

343012303 is a deficient number, since it is larger than the sum of its proper divisors (11064945).

343012303 is a wasteful number, since it uses less digits than its factorization.

343012303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11064944.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 343012303 is about 18520.5913242531. The cubic root of 343012303 is about 700.0083692877.

Adding to 343012303 its reverse (303210343), we get a palindrome (646222646).

The spelling of 343012303 in words is "three hundred forty-three million, twelve thousand, three hundred three".