4320123 has 8 divisors (see below), whose sum is σ = 5795328. Its totient is φ = 2862504.

The previous prime is 4320119. The next prime is 4320187. The reversal of 4320123 is 3210234.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4320123 - 2² = 4320119 is a prime.

It is an Ulam number.

4320123 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4320223) 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, 3811 + ... + 4812.

It is an arithmetic number, because the mean of its divisors is an integer number (724416).

Almost surely, 2^4320123 is an apocalyptic number.

4320123 is a deficient number, since it is larger than the sum of its proper divisors (1475205).

4320123 is a wasteful number, since it uses less digits than its factorization.

4320123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8793.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 4320123 is about 2078.4905580733. The cubic root of 4320123 is about 162.8666026911.

Adding to 4320123 its reverse (3210234), we get a palindrome (7530357).

The spelling of 4320123 in words is "four million, three hundred twenty thousand, one hundred twenty-three".