1111997027 has 2 divisors, whose sum is σ = 1111997028. Its totient is φ = 1111997026.

The previous prime is 1111997011. The next prime is 1111997093. The reversal of 1111997027 is 7207991111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111997027 - 2⁴ = 1111997011 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111997827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555998513 + 555998514.

It is an arithmetic number, because the mean of its divisors is an integer number (555998514).

Almost surely, 2^1111997027 is an apocalyptic number.

1111997027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111997027 is an equidigital number, since it uses as much as digits as its factorization.

1111997027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7938, while the sum is 38.

The square root of 1111997027 is about 33346.6194238636. The cubic root of 1111997027 is about 1036.0193701874.

The spelling of 1111997027 in words is "one billion, one hundred eleven million, nine hundred ninety-seven thousand, twenty-seven".