343320134431 has 4 divisors (see below), whose sum is σ = 343323885664. Its totient is φ = 343316383200.

The previous prime is 343320134429. The next prime is 343320134447. The reversal of 343320134431 is 134431023343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134431023343 = 96179 ⋅1397717.

It is a cyclic number.

It is not a de Polignac number, because 343320134431 - 2¹ = 343320134429 is a prime.

It is a super-2 number, since 2×343320134431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 343320134393 and 343320134402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343320134401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1734810 + ... + 1922551.

It is an arithmetic number, because the mean of its divisors is an integer number (85830971416).

Almost surely, 2^343320134431 is an apocalyptic number.

343320134431 is a deficient number, since it is larger than the sum of its proper divisors (3751233).

343320134431 is an equidigital number, since it uses as much as digits as its factorization.

343320134431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3751232.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 343320134431 its reverse (134431023343), we get a palindrome (477751157774).

The spelling of 343320134431 in words is "three hundred forty-three billion, three hundred twenty million, one hundred thirty-four thousand, four hundred thirty-one".