11233231111 has 2 divisors, whose sum is σ = 11233231112. Its totient is φ = 11233231110.

The previous prime is 11233231103. The next prime is 11233231123. The reversal of 11233231111 is 11113233211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11233231111 - 2³ = 11233231103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11233231181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5616615555 + 5616615556.

It is an arithmetic number, because the mean of its divisors is an integer number (5616615556).

Almost surely, 2^11233231111 is an apocalyptic number.

11233231111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11233231111 is an equidigital number, since it uses as much as digits as its factorization.

11233231111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108, while the sum is 19.

Adding to 11233231111 its reverse (11113233211), we get a palindrome (22346464322).

The spelling of 11233231111 in words is "eleven billion, two hundred thirty-three million, two hundred thirty-one thousand, one hundred eleven".