1111320011 has 2 divisors, whose sum is σ = 1111320012. Its totient is φ = 1111320010.

The previous prime is 1111319999. The next prime is 1111320017. The reversal of 1111320011 is 1100231111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1111320011 - 2²² = 1107125707 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1111319974 and 1111320001.

It is not a weakly prime, because it can be changed into another prime (1111320017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555660005 + 555660006.

It is an arithmetic number, because the mean of its divisors is an integer number (555660006).

Almost surely, 2^1111320011 is an apocalyptic number.

1111320011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111320011 is an equidigital number, since it uses as much as digits as its factorization.

1111320011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 1111320011 is about 33336.4666843983. The cubic root of 1111320011 is about 1035.8090746363.

Adding to 1111320011 its reverse (1100231111), we get a palindrome (2211551122).

Subtracting from 1111320011 its reverse (1100231111), we obtain a square (11088900 = 3330²).

The spelling of 1111320011 in words is "one billion, one hundred eleven million, three hundred twenty thousand, eleven".