4320123442 has 16 divisors (see below), whose sum is σ = 7117824960. Its totient is φ = 1957401072.

The previous prime is 4320123427. The next prime is 4320123443. The reversal of 4320123442 is 2443210234.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4320123443) 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, 2470593 + ... + 2472340.

It is an arithmetic number, because the mean of its divisors is an integer number (444864060).

Almost surely, 2^4320123442 is an apocalyptic number.

4320123442 is a deficient number, since it is larger than the sum of its proper divisors (2797701518).

4320123442 is a wasteful number, since it uses less digits than its factorization.

4320123442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4942977.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 4320123442 is about 65727.6459490221. The cubic root of 4320123442 is about 1628.6660824545. Note that the first 3 decimals are identical.

Adding to 4320123442 its reverse (2443210234), we get a palindrome (6763333676).

The spelling of 4320123442 in words is "four billion, three hundred twenty million, one hundred twenty-three thousand, four hundred forty-two".