240423123 has 8 divisors (see below), whose sum is σ = 320894208. Its totient is φ = 160117064.

The previous prime is 240423109. The next prime is 240423173. The reversal of 240423123 is 321324042.

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 240423123 - 2⁴ = 240423107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240423123.

It is not an unprimeable number, because it can be changed into a prime (240423103) 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 7 ways as a sum of consecutive naturals, for example, 37815 + ... + 43712.

It is an arithmetic number, because the mean of its divisors is an integer number (40111776).

Almost surely, 2^240423123 is an apocalyptic number.

240423123 is a deficient number, since it is larger than the sum of its proper divisors (80471085).

240423123 is an equidigital number, since it uses as much as digits as its factorization.

240423123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82513.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 240423123 is about 15505.5836072042. The cubic root of 240423123 is about 621.8114927631.

Adding to 240423123 its reverse (321324042), we get a palindrome (561747165).

The spelling of 240423123 in words is "two hundred forty million, four hundred twenty-three thousand, one hundred twenty-three".