243213542144 has 18 divisors (see below), whose sum is σ = 485477031900. Its totient is φ = 121606770944.

The previous prime is 243213542129. The next prime is 243213542171. The reversal of 243213542144 is 441245312342.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 475026194 + ... + 475026705.

Almost surely, 2^243213542144 is an apocalyptic number.

It is an amenable number.

243213542144 is a deficient number, since it is larger than the sum of its proper divisors (242263489756).

243213542144 is an frugal number, since it uses more digits than its factorization.

243213542144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950052915 (or 950052901 counting only the distinct ones).

The product of its digits is 92160, while the sum is 35.

Adding to 243213542144 its reverse (441245312342), we get a palindrome (684458854486).

The spelling of 243213542144 in words is "two hundred forty-three billion, two hundred thirteen million, five hundred forty-two thousand, one hundred forty-four".