11821127 has 2 divisors, whose sum is σ = 11821128. Its totient is φ = 11821126.

The previous prime is 11821123. The next prime is 11821151. The reversal of 11821127 is 72112811.

It is a weak prime.

It is an emirp because it is prime and its reverse (72112811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11821127 - 2² = 11821123 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11821123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5910563 + 5910564.

It is an arithmetic number, because the mean of its divisors is an integer number (5910564).

Almost surely, 2^11821127 is an apocalyptic number.

11821127 is a deficient number, since it is larger than the sum of its proper divisors (1).

11821127 is an equidigital number, since it uses as much as digits as its factorization.

11821127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 224, while the sum is 23.

The square root of 11821127 is about 3438.1865859781. The cubic root of 11821127 is about 227.7996020510.

Adding to 11821127 its reverse (72112811), we get a palindrome (83933938).

The spelling of 11821127 in words is "eleven million, eight hundred twenty-one thousand, one hundred twenty-seven".