1101311311 has 2 divisors, whose sum is σ = 1101311312. Its totient is φ = 1101311310.

The previous prime is 1101311297. The next prime is 1101311339. The reversal of 1101311311 is 1131131011.

It is a weak prime.

It is an emirp because it is prime and its reverse (1131131011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1101311311 - 2¹⁵ = 1101278543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1101311291 and 1101311300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101311371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550655655 + 550655656.

It is an arithmetic number, because the mean of its divisors is an integer number (550655656).

Almost surely, 2^1101311311 is an apocalyptic number.

1101311311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101311311 is an equidigital number, since it uses as much as digits as its factorization.

1101311311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9, while the sum is 13.

The square root of 1101311311 is about 33186.0107726132. The cubic root of 1101311311 is about 1032.6901465880.

Adding to 1101311311 its reverse (1131131011), we get a palindrome (2232442322).

The spelling of 1101311311 in words is "one billion, one hundred one million, three hundred eleven thousand, three hundred eleven".