243201054311 has 2 divisors, whose sum is σ = 243201054312. Its totient is φ = 243201054310.

The previous prime is 243201054301. The next prime is 243201054323. The reversal of 243201054311 is 113450102342.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243201054311 - 2²² = 243196860007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243201054301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121600527155 + 121600527156.

It is an arithmetic number, because the mean of its divisors is an integer number (121600527156).

Almost surely, 2^243201054311 is an apocalyptic number.

243201054311 is a deficient number, since it is larger than the sum of its proper divisors (1).

243201054311 is an equidigital number, since it uses as much as digits as its factorization.

243201054311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 243201054311 its reverse (113450102342), we get a palindrome (356651156653).

The spelling of 243201054311 in words is "two hundred forty-three billion, two hundred one million, fifty-four thousand, three hundred eleven".