243121241412 has 72 divisors (see below), whose sum is σ = 716683968000. Its totient is φ = 69463208304.

The previous prime is 243121241401. The next prime is 243121241477. The reversal of 243121241412 is 214142121342.

243121241412 is a `hidden beast` number, since 2 + 4 + 3 + 1 + 2 + 1 + 241 + 412 = 666.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9832212 + ... + 9856907.

It is an arithmetic number, because the mean of its divisors is an integer number (9953944000).

Almost surely, 2^243121241412 is an apocalyptic number.

It is an amenable number.

243121241412 is an abundant number, since it is smaller than the sum of its proper divisors (473562726588).

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

243121241412 is a wasteful number, since it uses less digits than its factorization.

243121241412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19689150 (or 19689131 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

Adding to 243121241412 its reverse (214142121342), we get a palindrome (457263362754).

The spelling of 243121241412 in words is "two hundred forty-three billion, one hundred twenty-one million, two hundred forty-one thousand, four hundred twelve".