243201142312 has 16 divisors (see below), whose sum is σ = 456084195840. Its totient is φ = 121578690096.

The previous prime is 243201142297. The next prime is 243201142319. The reversal of 243201142312 is 213241102342.

It is not an unprimeable number, because it can be changed into a prime (243201142319) 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, 2687848 + ... + 2776855.

It is an arithmetic number, because the mean of its divisors is an integer number (28505262240).

Almost surely, 2^243201142312 is an apocalyptic number.

It is an amenable number.

243201142312 is a deficient number, since it is larger than the sum of its proper divisors (212883053528).

243201142312 is a wasteful number, since it uses less digits than its factorization.

243201142312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5470272 (or 5470268 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 243201142312 its reverse (213241102342), we get a palindrome (456442244654).

The spelling of 243201142312 in words is "two hundred forty-three billion, two hundred one million, one hundred forty-two thousand, three hundred twelve".