1101011211011 has 4 divisors (see below), whose sum is σ = 1102697293152. Its totient is φ = 1099325128872.

The previous prime is 1101011210963. The next prime is 1101011211031. The reversal of 1101011211011 is 1101121101011.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1101011211011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101011210983 and 1101011211001.

It is not an unprimeable number, because it can be changed into a prime (1101011211031) 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, 843040091 + ... + 843041396.

It is an arithmetic number, because the mean of its divisors is an integer number (275674323288).

Almost surely, 2^{1101011211011} is an apocalyptic number.

1101011211011 is a deficient number, since it is larger than the sum of its proper divisors (1686082141).

1101011211011 is an equidigital number, since it uses as much as digits as its factorization.

1101011211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686082140.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 1101011211011 its reverse (1101121101011), we get a palindrome (2202132312022).

The spelling of 1101011211011 in words is "one trillion, one hundred one billion, eleven million, two hundred eleven thousand, eleven".