345312343 has 4 divisors (see below), whose sum is σ = 347220328. Its totient is φ = 343404360.

The previous prime is 345312329. The next prime is 345312371. The reversal of 345312343 is 343213543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343213543 = 2311 ⋅148513.

It is a cyclic number.

It is not a de Polignac number, because 345312343 - 2⁹ = 345311831 is a prime.

It is a super-2 number, since 2×345312343² = 238481228456299298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345312323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 953721 + ... + 954082.

It is an arithmetic number, because the mean of its divisors is an integer number (86805082).

Almost surely, 2^345312343 is an apocalyptic number.

345312343 is a deficient number, since it is larger than the sum of its proper divisors (1907985).

345312343 is a wasteful number, since it uses less digits than its factorization.

345312343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1907984.

The product of its digits is 12960, while the sum is 28.

The square root of 345312343 is about 18582.5817097625. The cubic root of 345312343 is about 701.5695007722.

Adding to 345312343 its reverse (343213543), we get a palindrome (688525886).

The spelling of 345312343 in words is "three hundred forty-five million, three hundred twelve thousand, three hundred forty-three".