343411331 has 4 divisors (see below), whose sum is σ = 346951752. Its totient is φ = 339870912.

The previous prime is 343411291. The next prime is 343411333. The reversal of 343411331 is 133114343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133114343 = 1009 ⋅131927.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343411331 is a prime.

It is a super-2 number, since 2×343411331² = 235862684518383122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 343411297 and 343411306.

It is not an unprimeable number, because it can be changed into a prime (343411333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1770065 + ... + 1770258.

It is an arithmetic number, because the mean of its divisors is an integer number (86737938).

Almost surely, 2^343411331 is an apocalyptic number.

343411331 is a deficient number, since it is larger than the sum of its proper divisors (3540421).

343411331 is an equidigital number, since it uses as much as digits as its factorization.

343411331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3540420.

The product of its digits is 1296, while the sum is 23.

The square root of 343411331 is about 18531.3607433453. The cubic root of 343411331 is about 700.2797052276.

Adding to 343411331 its reverse (133114343), we get a palindrome (476525674).

The spelling of 343411331 in words is "three hundred forty-three million, four hundred eleven thousand, three hundred thirty-one".