1011010111111 has 16 divisors (see below), whose sum is σ = 1357440150528. Its totient is φ = 727200079200.

The previous prime is 1011010111103. The next prime is 1011010111123. The reversal of 1011010111111 is 1111110101101.

It is a happy number.

1011010111111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1011010111111 - 2³ = 1011010111103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011010111151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 504999055 + ... + 505001056.

It is an arithmetic number, because the mean of its divisors is an integer number (84840009408).

Almost surely, 2^{1011010111111} is an apocalyptic number.

1011010111111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1011010111111 is a deficient number, since it is larger than the sum of its proper divisors (346430039417).

1011010111111 is a wasteful number, since it uses less digits than its factorization.

1011010111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010000142.

The product of its (nonzero) digits is 1, while the sum is 10.

Adding to 1011010111111 its reverse (1111110101101), we get a palindrome (2122120212212).

The spelling of 1011010111111 in words is "one trillion, eleven billion, ten million, one hundred eleven thousand, one hundred eleven".