343313121 has 16 divisors (see below), whose sum is σ = 470747648. Its totient is φ = 222393600.

The previous prime is 343313119. The next prime is 343313123. The reversal of 343313121 is 121313343.

It is an interprime number because it is at equal distance from previous prime (343313119) and next prime (343313123).

It is not a de Polignac number, because 343313121 - 2¹ = 343313119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343313123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108441 + ... + 111561.

It is an arithmetic number, because the mean of its divisors is an integer number (29421728).

Almost surely, 2^343313121 is an apocalyptic number.

It is an amenable number.

343313121 is a deficient number, since it is larger than the sum of its proper divisors (127434527).

343313121 is a wasteful number, since it uses less digits than its factorization.

343313121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4152.

The product of its digits is 648, while the sum is 21.

The square root of 343313121 is about 18528.7107214722. The cubic root of 343313121 is about 700.2129426984.

Adding to 343313121 its reverse (121313343), we get a palindrome (464626464).

The spelling of 343313121 in words is "three hundred forty-three million, three hundred thirteen thousand, one hundred twenty-one".