243201054511 has 32 divisors (see below), whose sum is σ = 274108665600. Its totient is φ = 214653304320.

The previous prime is 243201054479. The next prime is 243201054529. The reversal of 243201054511 is 115450102342.

It is not a de Polignac number, because 243201054511 - 2⁵ = 243201054479 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 243201054511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243201054311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3762576 + ... + 3826666.

It is an arithmetic number, because the mean of its divisors is an integer number (8565895800).

Almost surely, 2^243201054511 is an apocalyptic number.

243201054511 is a deficient number, since it is larger than the sum of its proper divisors (30907611089).

243201054511 is a wasteful number, since it uses less digits than its factorization.

243201054511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64359.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 243201054511 its reverse (115450102342), we get a palindrome (358651156853).

The spelling of 243201054511 in words is "two hundred forty-three billion, two hundred one million, fifty-four thousand, five hundred eleven".