243115021151 has 8 divisors (see below), whose sum is σ = 255915164400. Its totient is φ = 230315339520.

The previous prime is 243115021141. The next prime is 243115021159. The reversal of 243115021151 is 151120511342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243115021151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243115021151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243115021159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1689935 + ... + 1828143.

It is an arithmetic number, because the mean of its divisors is an integer number (31989395550).

Almost surely, 2^243115021151 is an apocalyptic number.

243115021151 is a deficient number, since it is larger than the sum of its proper divisors (12800143249).

243115021151 is a wasteful number, since it uses less digits than its factorization.

243115021151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230809.

The product of its (nonzero) digits is 1200, while the sum is 26.

Adding to 243115021151 its reverse (151120511342), we get a palindrome (394235532493).

The spelling of 243115021151 in words is "two hundred forty-three billion, one hundred fifteen million, twenty-one thousand, one hundred fifty-one".