243356064501101 has 2 divisors, whose sum is σ = 243356064501102. Its totient is φ = 243356064501100.

The previous prime is 243356064500947. The next prime is 243356064501103. The reversal of 243356064501101 is 101105460653342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193678574754025 + 49677489747076 = 13916845^2 + 7048226^2 .

It is a cyclic number.

It is not a de Polignac number, because 243356064501101 - 2¹⁰ = 243356064500077 is a prime.

Together with 243356064501103, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243356064501103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121678032250550 + 121678032250551.

It is an arithmetic number, because the mean of its divisors is an integer number (121678032250551).

Almost surely, 2^{243356064501101} is an apocalyptic number.

It is an amenable number.

243356064501101 is a deficient number, since it is larger than the sum of its proper divisors (1).

243356064501101 is an equidigital number, since it uses as much as digits as its factorization.

243356064501101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 243356064501101 in words is "two hundred forty-three trillion, three hundred fifty-six billion, sixty-four million, five hundred one thousand, one hundred one".