11111000027 has 2 divisors, whose sum is σ = 11111000028. Its totient is φ = 11111000026.

The previous prime is 11111000023. The next prime is 11111000051. The reversal of 11111000027 is 72000011111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11111000027 - 2² = 11111000023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11110999975 and 11111000020.

It is not a weakly prime, because it can be changed into another prime (11111000023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555500013 + 5555500014.

It is an arithmetic number, because the mean of its divisors is an integer number (5555500014).

Almost surely, 2^11111000027 is an apocalyptic number.

11111000027 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111000027 is an equidigital number, since it uses as much as digits as its factorization.

11111000027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14, while the sum is 14.

Adding to 11111000027 its reverse (72000011111), we get a palindrome (83111011138).

The spelling of 11111000027 in words is "eleven billion, one hundred eleven million, twenty-seven", and thus it is an aban number.