243242451320 has 64 divisors (see below), whose sum is σ = 628473340800. Its totient is φ = 83796439680.

The previous prime is 243242451307. The next prime is 243242451329. The reversal of 243242451320 is 23154242342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243242451329) 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, 14539634 + ... + 14556353.

It is an arithmetic number, because the mean of its divisors is an integer number (9819895950).

Almost surely, 2^243242451320 is an apocalyptic number.

243242451320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243242451320 is an abundant number, since it is smaller than the sum of its proper divisors (385230889480).

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

243242451320 is a wasteful number, since it uses less digits than its factorization.

243242451320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29096028 (or 29096024 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 243242451320 its reverse (23154242342), we get a palindrome (266396693662).

The spelling of 243242451320 in words is "two hundred forty-three billion, two hundred forty-two million, four hundred fifty-one thousand, three hundred twenty".