10111001011011 has 24 divisors (see below), whose sum is σ = 14613271749440. Its totient is φ = 6736748486400.

The previous prime is 10111001010949. The next prime is 10111001011043. The reversal of 10111001011011 is 11011010011101.

It is not a de Polignac number, because 10111001011011 - 2³³ = 10102411076419 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 = 10111001010984 and 10111001011002.

It is not an unprimeable number, because it can be changed into a prime (10111001011081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 195806166 + ... + 195857796.

Almost surely, 2^{10111001011011} is an apocalyptic number.

10111001011011 is a deficient number, since it is larger than the sum of its proper divisors (4502270738429).

10111001011011 is a wasteful number, since it uses less digits than its factorization.

10111001011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63867 (or 63864 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 10111001011011 its reverse (11011010011101), we get a palindrome (21122011022112).

The spelling of 10111001011011 in words is "ten trillion, one hundred eleven billion, one million, eleven thousand, eleven".