343131323 has 2 divisors, whose sum is σ = 343131324. Its totient is φ = 343131322.

The previous prime is 343131301. The next prime is 343131353. The reversal of 343131323 is 323131343.

It is a weak prime.

It is an emirp because it is prime and its reverse (323131343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 343131323 - 2²² = 338937019 is a prime.

It is not a weakly prime, because it can be changed into another prime (343131353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171565661 + 171565662.

It is an arithmetic number, because the mean of its divisors is an integer number (171565662).

Almost surely, 2^343131323 is an apocalyptic number.

343131323 is a deficient number, since it is larger than the sum of its proper divisors (1).

343131323 is an equidigital number, since it uses as much as digits as its factorization.

343131323 is an evil number, because the sum of its binary digits is even.

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

The square root of 343131323 is about 18523.8042259143. The cubic root of 343131323 is about 700.0893239754.

Adding to 343131323 its reverse (323131343), we get a palindrome (666262666).

The spelling of 343131323 in words is "three hundred forty-three million, one hundred thirty-one thousand, three hundred twenty-three".