1011101111011 has 4 divisors (see below), whose sum is σ = 1011104307400. Its totient is φ = 1011097914624.

The previous prime is 1011101111003. The next prime is 1011101111071. The reversal of 1011101111011 is 1101111011101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1011101111011 - 2³ = 1011101111003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011101111071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1064241 + ... + 1776178.

It is an arithmetic number, because the mean of its divisors is an integer number (252776076850).

Almost surely, 2^{1011101111011} is an apocalyptic number.

1011101111011 is a deficient number, since it is larger than the sum of its proper divisors (3196389).

1011101111011 is an equidigital number, since it uses as much as digits as its factorization.

1011101111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3196388.

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

Adding to 1011101111011 its reverse (1101111011101), we get a palindrome (2112212122112).

It can be divided in two parts, 101110 and 1111011, that added together give a palindrome (1212121).

The spelling of 1011101111011 in words is "one trillion, eleven billion, one hundred one million, one hundred eleven thousand, eleven".