11121232271 has 2 divisors, whose sum is σ = 11121232272. Its totient is φ = 11121232270.

The previous prime is 11121232253. The next prime is 11121232273. The reversal of 11121232271 is 17223212111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11121232271 - 2³⁰ = 10047490447 is a prime.

Together with 11121232273, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11121232273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560616135 + 5560616136.

It is an arithmetic number, because the mean of its divisors is an integer number (5560616136).

Almost surely, 2^11121232271 is an apocalyptic number.

11121232271 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121232271 is an equidigital number, since it uses as much as digits as its factorization.

11121232271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336, while the sum is 23.

Adding to 11121232271 its reverse (17223212111), we get a palindrome (28344444382).

The spelling of 11121232271 in words is "eleven billion, one hundred twenty-one million, two hundred thirty-two thousand, two hundred seventy-one".