243121244552 has 16 divisors (see below), whose sum is σ = 470557248000. Its totient is φ = 117639311760.

The previous prime is 243121244417. The next prime is 243121244557. The reversal of 243121244552 is 255442121342.

It is not an unprimeable number, because it can be changed into a prime (243121244557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490163552 + ... + 490164047.

It is an arithmetic number, because the mean of its divisors is an integer number (29409828000).

Almost surely, 2^243121244552 is an apocalyptic number.

It is an amenable number.

243121244552 is a deficient number, since it is larger than the sum of its proper divisors (227436003448).

243121244552 is a wasteful number, since it uses less digits than its factorization.

243121244552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980327636 (or 980327632 counting only the distinct ones).

The product of its digits is 76800, while the sum is 35.

Adding to 243121244552 its reverse (255442121342), we get a palindrome (498563365894).

The spelling of 243121244552 in words is "two hundred forty-three billion, one hundred twenty-one million, two hundred forty-four thousand, five hundred fifty-two".