240343042123 has 8 divisors (see below), whose sum is σ = 240531638336. Its totient is φ = 240154518600.

The previous prime is 240343042021. The next prime is 240343042151. The reversal of 240343042123 is 321240343042.

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 240343042123 - 2²¹ = 240340944971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240343042091 and 240343042100.

It is not an unprimeable number, because it can be changed into a prime (240343042183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7890040 + ... + 7920442.

It is an arithmetic number, because the mean of its divisors is an integer number (30066454792).

Almost surely, 2^240343042123 is an apocalyptic number.

240343042123 is a deficient number, since it is larger than the sum of its proper divisors (188596213).

240343042123 is a wasteful number, since it uses less digits than its factorization.

240343042123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36345.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 240343042123 its reverse (321240343042), we get a palindrome (561583385165).

The spelling of 240343042123 in words is "two hundred forty billion, three hundred forty-three million, forty-two thousand, one hundred twenty-three".