343213333231 has 2 divisors, whose sum is σ = 343213333232. Its totient is φ = 343213333230.

The previous prime is 343213333207. The next prime is 343213333271. The reversal of 343213333231 is 132333312343.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 343213333231 - 2³¹ = 341065849583 is a prime.

It is a super-2 number, since 2×343213333231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 343213333193 and 343213333202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343213333271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171606666615 + 171606666616.

It is an arithmetic number, because the mean of its divisors is an integer number (171606666616).

Almost surely, 2^343213333231 is an apocalyptic number.

343213333231 is a deficient number, since it is larger than the sum of its proper divisors (1).

343213333231 is an equidigital number, since it uses as much as digits as its factorization.

343213333231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 31.

Adding to 343213333231 its reverse (132333312343), we get a palindrome (475546645574).

The spelling of 343213333231 in words is "three hundred forty-three billion, two hundred thirteen million, three hundred thirty-three thousand, two hundred thirty-one".