243115030220 has 12 divisors (see below), whose sum is σ = 510541563504. Its totient is φ = 97246012080.

The previous prime is 243115030177. The next prime is 243115030229. The reversal of 243115030220 is 22030511342.

It is not an unprimeable number, because it can be changed into a prime (243115030229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6077875736 + ... + 6077875775.

It is an arithmetic number, because the mean of its divisors is an integer number (42545130292).

Almost surely, 2^243115030220 is an apocalyptic number.

243115030220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243115030220 is an abundant number, since it is smaller than the sum of its proper divisors (267426533284).

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

243115030220 is a wasteful number, since it uses less digits than its factorization.

243115030220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12155751520 (or 12155751518 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 243115030220 its reverse (22030511342), we get a palindrome (265145541562).

The spelling of 243115030220 in words is "two hundred forty-three billion, one hundred fifteen million, thirty thousand, two hundred twenty".