343131413 has 2 divisors, whose sum is σ = 343131414. Its totient is φ = 343131412.

The previous prime is 343131407. The next prime is 343131491. The reversal of 343131413 is 314131343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 289578289 + 53553124 = 17017^2 + 7318^2 .

It is a cyclic number.

It is not a de Polignac number, because 343131413 - 2²⁰ = 342082837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343131493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171565706 + 171565707.

It is an arithmetic number, because the mean of its divisors is an integer number (171565707).

Almost surely, 2^343131413 is an apocalyptic number.

It is an amenable number.

343131413 is a deficient number, since it is larger than the sum of its proper divisors (1).

343131413 is an equidigital number, since it uses as much as digits as its factorization.

343131413 is an evil number, because the sum of its binary digits is even.

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

The square root of 343131413 is about 18523.8066552207. The cubic root of 343131413 is about 700.0893851843.

Adding to 343131413 its reverse (314131343), we get a palindrome (657262756).

The spelling of 343131413 in words is "three hundred forty-three million, one hundred thirty-one thousand, four hundred thirteen".