211102011011 has 2 divisors, whose sum is σ = 211102011012. Its totient is φ = 211102011010.

The previous prime is 211102011007. The next prime is 211102011041. The reversal of 211102011011 is 110110201112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211102011011 - 2² = 211102011007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211102010983 and 211102011001.

It is not a weakly prime, because it can be changed into another prime (211102011041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105551005505 + 105551005506.

It is an arithmetic number, because the mean of its divisors is an integer number (105551005506).

Almost surely, 2^211102011011 is an apocalyptic number.

211102011011 is a deficient number, since it is larger than the sum of its proper divisors (1).

211102011011 is an equidigital number, since it uses as much as digits as its factorization.

211102011011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 211102011011 its reverse (110110201112), we get a palindrome (321212212123).

The spelling of 211102011011 in words is "two hundred eleven billion, one hundred two million, eleven thousand, eleven".