11130231111 has 16 divisors (see below), whose sum is σ = 14891954400. Its totient is φ = 7394370048.

The previous prime is 11130231107. The next prime is 11130231121. The reversal of 11130231111 is 11113203111.

It is not a de Polignac number, because 11130231111 - 2² = 11130231107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11130231121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1341885 + ... + 1350153.

It is an arithmetic number, because the mean of its divisors is an integer number (930747150).

Almost surely, 2^11130231111 is an apocalyptic number.

11130231111 is a deficient number, since it is larger than the sum of its proper divisors (3761723289).

11130231111 is a wasteful number, since it uses less digits than its factorization.

11130231111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9778.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 11130231111 its reverse (11113203111), we get a palindrome (22243434222).

The spelling of 11130231111 in words is "eleven billion, one hundred thirty million, two hundred thirty-one thousand, one hundred eleven".