343144311331 has 2 divisors, whose sum is σ = 343144311332. Its totient is φ = 343144311330.

The previous prime is 343144311281. The next prime is 343144311379. The reversal of 343144311331 is 133113441343.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 343144311331 - 2⁷ = 343144311203 is a prime.

It is a super-2 number, since 2×343144311331² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 343144311293 and 343144311302.

It is not a weakly prime, because it can be changed into another prime (343144311131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171572155665 + 171572155666.

It is an arithmetic number, because the mean of its divisors is an integer number (171572155666).

Almost surely, 2^343144311331 is an apocalyptic number.

343144311331 is a deficient number, since it is larger than the sum of its proper divisors (1).

343144311331 is an equidigital number, since it uses as much as digits as its factorization.

343144311331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 31.

Adding to 343144311331 its reverse (133113441343), we get a palindrome (476257752674).

The spelling of 343144311331 in words is "three hundred forty-three billion, one hundred forty-four million, three hundred eleven thousand, three hundred thirty-one".