343220203 has 4 divisors (see below), whose sum is σ = 343388160. Its totient is φ = 343052248.

The previous prime is 343220201. The next prime is 343220239. The reversal of 343220203 is 302022343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302022343 = 7 ⋅43146049.

It is a cyclic number.

It is not a de Polignac number, because 343220203 - 2¹ = 343220201 is a prime.

It is a super-2 number, since 2×343220203² = 235600215494722418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343220201) 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, 80875 + ... + 85012.

It is an arithmetic number, because the mean of its divisors is an integer number (85847040).

Almost surely, 2^343220203 is an apocalyptic number.

343220203 is a deficient number, since it is larger than the sum of its proper divisors (167957).

343220203 is a wasteful number, since it uses less digits than its factorization.

343220203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167956.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 343220203 is about 18526.2031458148. The cubic root of 343220203 is about 700.1497659143.

Adding to 343220203 its reverse (302022343), we get a palindrome (645242546).

The spelling of 343220203 in words is "three hundred forty-three million, two hundred twenty thousand, two hundred three".