343402123 has 8 divisors (see below), whose sum is σ = 349330320. Its totient is φ = 337483680.

The previous prime is 343402117. The next prime is 343402151. The reversal of 343402123 is 321204343.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 343402123 - 2¹⁷ = 343271051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 343402094 and 343402103.

It is not an unprimeable number, because it can be changed into a prime (343402223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120408 + ... + 123226.

It is an arithmetic number, because the mean of its divisors is an integer number (43666290).

Almost surely, 2^343402123 is an apocalyptic number.

343402123 is a deficient number, since it is larger than the sum of its proper divisors (5928197).

343402123 is a wasteful number, since it uses less digits than its factorization.

343402123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4877.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 343402123 is about 18531.1122979707. The cubic root of 343402123 is about 700.2734462290.

Adding to 343402123 its reverse (321204343), we get a palindrome (664606466).

It can be divided in two parts, 34340 and 2123, that added together give a palindrome (36463).

The spelling of 343402123 in words is "three hundred forty-three million, four hundred two thousand, one hundred twenty-three".