20123168 has 54 divisors (see below), whose sum is σ = 43614207. Its totient is φ = 9135360.

The previous prime is 20123149. The next prime is 20123171. The reversal of 20123168 is 86132102.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 868624 + 19254544 = 932^2 + 4388^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3172.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 329858 + ... + 329918.

Almost surely, 2^20123168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20123168

20123168 is an abundant number, since it is smaller than the sum of its proper divisors (23491039).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20123168 is an equidigital number, since it uses as much as digits as its factorization.

20123168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 20123168 is about 4485.8854198475. The cubic root of 20123168 is about 271.9978373530.

The spelling of 20123168 in words is "twenty million, one hundred twenty-three thousand, one hundred sixty-eight".