343131131 has 8 divisors (see below), whose sum is σ = 395815680. Its totient is φ = 291363048.

The previous prime is 343131119. The next prime is 343131133. The reversal of 343131131 is 131131343.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 343131131 - 2¹⁸ = 342868987 is a prime.

It is a super-2 number, since 2×343131131² = 235477946122678322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343131133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228311 + ... + 229808.

It is an arithmetic number, because the mean of its divisors is an integer number (49476960).

Almost surely, 2^343131131 is an apocalyptic number.

343131131 is a deficient number, since it is larger than the sum of its proper divisors (52684549).

343131131 is a wasteful number, since it uses less digits than its factorization.

343131131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458233.

The product of its digits is 324, while the sum is 20.

The square root of 343131131 is about 18523.7990433928. The cubic root of 343131131 is about 700.0891933965.

Adding to 343131131 its reverse (131131343), we get a palindrome (474262474).

The spelling of 343131131 in words is "three hundred forty-three million, one hundred thirty-one thousand, one hundred thirty-one".