1010101101111 has 32 divisors (see below), whose sum is σ = 1511145574400.
Its totient is φ = 666793905120.
The previous prime is 1010101101089. The next prime is 1010101101167. The reversal of 1010101101111 is 1111011010101.
Adding to 1010101101111 its reverse (1111011010101), we get a palindrome (2121112111212).
It is not a de Polignac number, because 1010101101111 - 26 = 1010101101047 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1010101101093 and 1010101101102.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1010101101811) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4502166 + ... + 4721196.
It is an arithmetic number, because the mean of its divisors is an integer number (47223299200).
Almost surely, 21010101101111 is an apocalyptic number.
1010101101111 is a deficient number, since it is larger than the sum of its proper divisors (501044473289).
1010101101111 is a wasteful number, since it uses less digits than its factorization.
1010101101111 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 220716 (or 220710 counting only the distinct ones).
The product of its (nonzero) digits is 1, while the sum is 9.
The spelling of 1010101101111 in words is "one trillion, ten billion, one hundred one million, one hundred one thousand, one hundred eleven".