201105287093 has 2 divisors, whose sum is σ = 201105287094. Its totient is φ = 201105287092.

The previous prime is 201105287069. The next prime is 201105287129. The reversal of 201105287093 is 390782501102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199110503524 + 1994783569 = 446218^2 + 44663^2 .

It is a cyclic number.

It is not a de Polignac number, because 201105287093 - 2¹² = 201105282997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201105287393) 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, 100552643546 + 100552643547.

It is an arithmetic number, because the mean of its divisors is an integer number (100552643547).

Almost surely, 2^201105287093 is an apocalyptic number.

It is an amenable number.

201105287093 is a deficient number, since it is larger than the sum of its proper divisors (1).

201105287093 is an equidigital number, since it uses as much as digits as its factorization.

201105287093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 38.

Adding to 201105287093 its reverse (390782501102), we get a palindrome (591887788195).

The spelling of 201105287093 in words is "two hundred one billion, one hundred five million, two hundred eighty-seven thousand, ninety-three".