11123309011 has 2 divisors, whose sum is σ = 11123309012. Its totient is φ = 11123309010.

The previous prime is 11123309009. The next prime is 11123309017. The reversal of 11123309011 is 11090332111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11123309011 - 2¹ = 11123309009 is a prime.

Together with 11123309009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11123309017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561654505 + 5561654506.

It is an arithmetic number, because the mean of its divisors is an integer number (5561654506).

Almost surely, 2^11123309011 is an apocalyptic number.

11123309011 is a deficient number, since it is larger than the sum of its proper divisors (1).

11123309011 is an equidigital number, since it uses as much as digits as its factorization.

11123309011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 22.

The spelling of 11123309011 in words is "eleven billion, one hundred twenty-three million, three hundred nine thousand, eleven".