2111001101011 has 6 divisors (see below), whose sum is σ = 2320356582236. Its totient is φ = 1919091909900.

The previous prime is 2111001100981. The next prime is 2111001101017. The reversal of 2111001101011 is 1101011001112.

It is not a de Polignac number, because 2111001101011 - 2¹⁷ = 2111000969939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2111001101017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8723144925 + ... + 8723145166.

Almost surely, 2^{2111001101011} is an apocalyptic number.

2111001101011 is a deficient number, since it is larger than the sum of its proper divisors (209355481225).

2111001101011 is a wasteful number, since it uses less digits than its factorization.

2111001101011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17446290113 (or 17446290102 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 2111001101011 its reverse (1101011001112), we get a palindrome (3212012102123).

The spelling of 2111001101011 in words is "two trillion, one hundred eleven billion, one million, one hundred one thousand, eleven".