1101111011011 has 8 divisors (see below), whose sum is σ = 1201233048624. Its totient is φ = 1000992479520.

The previous prime is 1101111010999. The next prime is 1101111011047. The reversal of 1101111011011 is 1101101111011.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1101111011011 - 2³³ = 1092521076419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101111011311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196956 + ... + 1497001.

It is an arithmetic number, because the mean of its divisors is an integer number (150154131078).

Almost surely, 2^{1101111011011} is an apocalyptic number.

1101111011011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1101111011011 is a deficient number, since it is larger than the sum of its proper divisors (100122037613).

1101111011011 is a wasteful number, since it uses less digits than its factorization.

1101111011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753061.

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

Adding to 1101111011011 its reverse (1101101111011), we get a palindrome (2202212122022).

It can be divided in two parts, 11011 and 11011011, that multiplied together give a palindrome (121242242121).

The spelling of 1101111011011 in words is "one trillion, one hundred one billion, one hundred eleven million, eleven thousand, eleven".