243012420320 has 48 divisors (see below), whose sum is σ = 574193188800. Its totient is φ = 97192041984.

The previous prime is 243012420311. The next prime is 243012420347. The reversal of 243012420320 is 23024210342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1154606 + ... + 1348754.

It is an arithmetic number, because the mean of its divisors is an integer number (11962358100).

Almost surely, 2^243012420320 is an apocalyptic number.

243012420320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243012420320 is an abundant number, since it is smaller than the sum of its proper divisors (331180768480).

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

243012420320 is a wasteful number, since it uses less digits than its factorization.

243012420320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201987 (or 201979 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 243012420320 its reverse (23024210342), we get a palindrome (266036630662).

The spelling of 243012420320 in words is "two hundred forty-three billion, twelve million, four hundred twenty thousand, three hundred twenty".