18201101011 has 2 divisors, whose sum is σ = 18201101012. Its totient is φ = 18201101010.

The previous prime is 18201100987. The next prime is 18201101029. The reversal of 18201101011 is 11010110281.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18201101011 - 2¹⁷ = 18200969939 is a prime.

It is a super-3 number, since 3×18201101011³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (18201101071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9100550505 + 9100550506.

It is an arithmetic number, because the mean of its divisors is an integer number (9100550506).

Almost surely, 2^18201101011 is an apocalyptic number.

18201101011 is a deficient number, since it is larger than the sum of its proper divisors (1).

18201101011 is an equidigital number, since it uses as much as digits as its factorization.

18201101011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 18201101011 its reverse (11010110281), we get a palindrome (29211211292).

The spelling of 18201101011 in words is "eighteen billion, two hundred one million, one hundred one thousand, eleven".