11911027 has 2 divisors, whose sum is σ = 11911028. Its totient is φ = 11911026.

The previous prime is 11911019. The next prime is 11911057. The reversal of 11911027 is 72011911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11911027 - 2³ = 11911019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11910989 and 11911007.

It is not a weakly prime, because it can be changed into another prime (11911057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5955513 + 5955514.

It is an arithmetic number, because the mean of its divisors is an integer number (5955514).

Almost surely, 2^11911027 is an apocalyptic number.

11911027 is a deficient number, since it is larger than the sum of its proper divisors (1).

11911027 is an equidigital number, since it uses as much as digits as its factorization.

11911027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 22.

The square root of 11911027 is about 3451.2355758482. The cubic root of 11911027 is about 228.3756184082.

Adding to 11911027 its reverse (72011911), we get a palindrome (83922938).

The spelling of 11911027 in words is "eleven million, nine hundred eleven thousand, twenty-seven".