243023120 has 20 divisors (see below), whose sum is σ = 565028940. Its totient is φ = 97209216.

The previous prime is 243023101. The next prime is 243023147. The reversal of 243023120 is 21320342.

243023120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 61528336 + 181494784 = 7844^2 + 13472^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1518815 + ... + 1518974.

It is an arithmetic number, because the mean of its divisors is an integer number (28251447).

Almost surely, 2^243023120 is an apocalyptic number.

243023120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243023120 is an abundant number, since it is smaller than the sum of its proper divisors (322005820).

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

243023120 is a wasteful number, since it uses less digits than its factorization.

243023120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3037802 (or 3037796 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 243023120 is about 15589.1988248274. The cubic root of 243023120 is about 624.0449370443.

Adding to 243023120 its reverse (21320342), we get a palindrome (264343462).

The spelling of 243023120 in words is "two hundred forty-three million, twenty-three thousand, one hundred twenty".