211101011018 has 4 divisors (see below), whose sum is σ = 316651516530. Its totient is φ = 105550505508.

The previous prime is 211101010963. The next prime is 211101011029. The reversal of 211101011018 is 810110101112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 121680275929 + 89420735089 = 348827^2 + 299033^2 .

It is a junction number, because it is equal to n+sod(n) for n = 211101010987 and 211101011005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52775252753 + ... + 52775252756.

Almost surely, 2^211101011018 is an apocalyptic number.

211101011018 is a deficient number, since it is larger than the sum of its proper divisors (105550505512).

211101011018 is a wasteful number, since it uses less digits than its factorization.

211101011018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105550505511.

The product of its (nonzero) digits is 16, while the sum is 17.

The spelling of 211101011018 in words is "two hundred eleven billion, one hundred one million, eleven thousand, eighteen".