1101210111011 has 2 divisors, whose sum is σ = 1101210111012. Its totient is φ = 1101210111010.

The previous prime is 1101210110999. The next prime is 1101210111013. The reversal of 1101210111011 is 1101110121011.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1101210111011 - 2²⁶ = 1101143002147 is a prime.

Together with 1101210111013, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1101210110983 and 1101210111001.

It is not a weakly prime, because it can be changed into another prime (1101210111013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550605055505 + 550605055506.

It is an arithmetic number, because the mean of its divisors is an integer number (550605055506).

Almost surely, 2^{1101210111011} is an apocalyptic number.

1101210111011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101210111011 is an equidigital number, since it uses as much as digits as its factorization.

1101210111011 is an evil number, because the sum of its binary digits is even.

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

Adding to 1101210111011 its reverse (1101110121011), we get a palindrome (2202320232022).

The spelling of 1101210111011 in words is "one trillion, one hundred one billion, two hundred ten million, one hundred eleven thousand, eleven".