243310421431120 has 80 divisors (see below), whose sum is σ = 569165581674000. Its totient is φ = 96728870744064.

The previous prime is 243310421431109. The next prime is 243310421431159. The reversal of 243310421431120 is 21134124013342.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 13612026544704 + 229698394886416 = 3689448^2 + 15155804^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×243310421431120² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1246515 + ... + 22094674.

It is an arithmetic number, because the mean of its divisors is an integer number (7114569770925).

Almost surely, 2^{243310421431120} is an apocalyptic number.

243310421431120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243310421431120 is an abundant number, since it is smaller than the sum of its proper divisors (325855160242880).

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

243310421431120 is a wasteful number, since it uses less digits than its factorization.

243310421431120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23342000 (or 23341994 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 243310421431120 its reverse (21134124013342), we get a palindrome (264444545444462).

The spelling of 243310421431120 in words is "two hundred forty-three trillion, three hundred ten billion, four hundred twenty-one million, four hundred thirty-one thousand, one hundred twenty".