220123123 has 8 divisors (see below), whose sum is σ = 254260080. Its totient is φ = 188340480.

The previous prime is 220123121. The next prime is 220123129. The reversal of 220123123 is 321321022.

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 220123123 - 2¹ = 220123121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220123097 and 220123106.

It is not an unprimeable number, because it can be changed into a prime (220123121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 588378 + ... + 588751.

It is an arithmetic number, because the mean of its divisors is an integer number (31782510).

Almost surely, 2^220123123 is an apocalyptic number.

220123123 is a deficient number, since it is larger than the sum of its proper divisors (34136957).

220123123 is a wasteful number, since it uses less digits than its factorization.

220123123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177157.

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

The square root of 220123123 is about 14836.5468691337. The cubic root of 220123123 is about 603.7936693819.

Adding to 220123123 its reverse (321321022), we get a palindrome (541444145).

The spelling of 220123123 in words is "two hundred twenty million, one hundred twenty-three thousand, one hundred twenty-three".