243013020 has 96 divisors (see below), whose sum is σ = 702621696. Its totient is φ = 62726400.

The previous prime is 243013019. The next prime is 243013031. The reversal of 243013020 is 20310342.

243013020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 244725 + ... + 245715.

It is an arithmetic number, because the mean of its divisors is an integer number (7318976).

Almost surely, 2^243013020 is an apocalyptic number.

243013020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243013020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351310848).

243013020 is an abundant number, since it is smaller than the sum of its proper divisors (459608676).

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

243013020 is a wasteful number, since it uses less digits than its factorization.

243013020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131 (or 1129 counting only the distinct ones).

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

The square root of 243013020 is about 15588.8748792208. The cubic root of 243013020 is about 624.0362918570.

Adding to 243013020 its reverse (20310342), we get a palindrome (263323362).

The spelling of 243013020 in words is "two hundred forty-three million, thirteen thousand, twenty".