243055230420 has 48 divisors (see below), whose sum is σ = 685450745280. Its totient is φ = 64348432896.

The previous prime is 243055230419. The next prime is 243055230421. The reversal of 243055230420 is 24032550342.

It is an interprime number because it is at equal distance from previous prime (243055230419) and next prime (243055230421).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243055230421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14563317 + ... + 14579996.

It is an arithmetic number, because the mean of its divisors is an integer number (14280223860).

Almost surely, 2^243055230420 is an apocalyptic number.

243055230420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243055230420 is an abundant number, since it is smaller than the sum of its proper divisors (442395514860).

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

243055230420 is a wasteful number, since it uses less digits than its factorization.

243055230420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29143464 (or 29143462 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 243055230420 its reverse (24032550342), we get a palindrome (267087780762).

The spelling of 243055230420 in words is "two hundred forty-three billion, fifty-five million, two hundred thirty thousand, four hundred twenty".