1111020011 has 2 divisors, whose sum is σ = 1111020012. Its totient is φ = 1111020010.

The previous prime is 1111019993. The next prime is 1111020017. The reversal of 1111020011 is 1100201111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1111020011 - 2²⁶ = 1043911147 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111020017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555510005 + 555510006.

It is an arithmetic number, because the mean of its divisors is an integer number (555510006).

Almost surely, 2^1111020011 is an apocalyptic number.

1111020011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111020011 is an equidigital number, since it uses as much as digits as its factorization.

1111020011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2, while the sum is 8.

The square root of 1111020011 is about 33331.9668036556. The cubic root of 1111020011 is about 1035.7158609550.

Adding to 1111020011 its reverse (1100201111), we get a palindrome (2211221122).

The spelling of 1111020011 in words is "one billion, one hundred eleven million, twenty thousand, eleven".