340012123 has 8 divisors (see below), whose sum is σ = 382887936. Its totient is φ = 299130600.

The previous prime is 340012091. The next prime is 340012133. The reversal of 340012123 is 321210043.

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 340012123 - 2⁵ = 340012091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340012097 and 340012106.

It is not an unprimeable number, because it can be changed into a prime (340012133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498211 + ... + 498892.

It is an arithmetic number, because the mean of its divisors is an integer number (47860992).

Almost surely, 2^340012123 is an apocalyptic number.

340012123 is a deficient number, since it is larger than the sum of its proper divisors (42875813).

340012123 is a wasteful number, since it uses less digits than its factorization.

340012123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997145.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 340012123 is about 18439.4176426480. The cubic root of 340012123 is about 697.9614999714.

Adding to 340012123 its reverse (321210043), we get a palindrome (661222166).

The spelling of 340012123 in words is "three hundred forty million, twelve thousand, one hundred twenty-three".