11132321111 has 2 divisors, whose sum is σ = 11132321112. Its totient is φ = 11132321110.

The previous prime is 11132321069. The next prime is 11132321113. The reversal of 11132321111 is 11112323111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11132321111 - 2⁶ = 11132321047 is a prime.

Together with 11132321113, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11132321111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11132321113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5566160555 + 5566160556.

It is an arithmetic number, because the mean of its divisors is an integer number (5566160556).

Almost surely, 2^11132321111 is an apocalyptic number.

11132321111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11132321111 is an equidigital number, since it uses as much as digits as its factorization.

11132321111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36, while the sum is 17.

Adding to 11132321111 its reverse (11112323111), we get a palindrome (22244644222).

The spelling of 11132321111 in words is "eleven billion, one hundred thirty-two million, three hundred twenty-one thousand, one hundred eleven".