340043002123 has 4 divisors (see below), whose sum is σ = 370956002328. Its totient is φ = 309130001920.

The previous prime is 340043002111. The next prime is 340043002151. The reversal of 340043002123 is 321200340043.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340043002123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340043002094 and 340043002103.

It is not an unprimeable number, because it can be changed into a prime (340043002723) 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 3 ways as a sum of consecutive naturals, for example, 15456500086 + ... + 15456500107.

It is an arithmetic number, because the mean of its divisors is an integer number (92739000582).

Almost surely, 2^340043002123 is an apocalyptic number.

340043002123 is a deficient number, since it is larger than the sum of its proper divisors (30913000205).

340043002123 is a wasteful number, since it uses less digits than its factorization.

340043002123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30913000204.

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

Adding to 340043002123 its reverse (321200340043), we get a palindrome (661243342166).

The spelling of 340043002123 in words is "three hundred forty billion, forty-three million, two thousand, one hundred twenty-three".