343323131 has 4 divisors (see below), whose sum is σ = 344342232. Its totient is φ = 342304032.

The previous prime is 343323119. The next prime is 343323157. The reversal of 343323131 is 131323343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131323343 = 8329 ⋅15767.

It is a cyclic number.

It is not a de Polignac number, because 343323131 - 2²² = 339128827 is a prime.

It is a super-2 number, since 2×343323131² = 235741544559286322, 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 = 343323097 and 343323106.

It is not an unprimeable number, because it can be changed into a prime (343323181) 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, 509045 + ... + 509718.

It is an arithmetic number, because the mean of its divisors is an integer number (86085558).

Almost surely, 2^343323131 is an apocalyptic number.

343323131 is a deficient number, since it is larger than the sum of its proper divisors (1019101).

343323131 is a wasteful number, since it uses less digits than its factorization.

343323131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019100.

The product of its digits is 1944, while the sum is 23.

The square root of 343323131 is about 18528.9808408342. The cubic root of 343323131 is about 700.2197480150.

Adding to 343323131 its reverse (131323343), we get a palindrome (474646474).

The spelling of 343323131 in words is "three hundred forty-three million, three hundred twenty-three thousand, one hundred thirty-one".