211101001101011 has 6 divisors (see below), whose sum is σ = 245566470668580. Its totient is φ = 180943715229396.

The previous prime is 211101001100999. The next prime is 211101001101013. The reversal of 211101001101011 is 110101100101112.

It is a happy number.

It is not a de Polignac number, because 211101001101011 - 2⁴⁶ = 140732256923347 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211101001100983 and 211101001101001.

It is not an unprimeable number, because it can be changed into a prime (211101001101013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2154091847921 + ... + 2154091848018.

It is an arithmetic number, because the mean of its divisors is an integer number (40927745111430).

Almost surely, 2^{211101001101011} is an apocalyptic number.

211101001101011 is a deficient number, since it is larger than the sum of its proper divisors (34465469567569).

211101001101011 is an equidigital number, since it uses as much as digits as its factorization.

211101001101011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4308183695953 (or 4308183695946 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 211101001101011 its reverse (110101100101112), we get a palindrome (321202101202123).

The spelling of 211101001101011 in words is "two hundred eleven trillion, one hundred one billion, one million, one hundred one thousand, eleven".