1111244009 has 2 divisors, whose sum is σ = 1111244010. Its totient is φ = 1111244008.

The previous prime is 1111244003. The next prime is 1111244023. The reversal of 1111244009 is 9004421111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 915244009 + 196000000 = 30253^2 + 14000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111244009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111244003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555622004 + 555622005.

It is an arithmetic number, because the mean of its divisors is an integer number (555622005).

Almost surely, 2^1111244009 is an apocalyptic number.

It is an amenable number.

1111244009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111244009 is an equidigital number, since it uses as much as digits as its factorization.

1111244009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1111244009 is about 33335.3267420615. The cubic root of 1111244009 is about 1035.7854614690.

The spelling of 1111244009 in words is "one billion, one hundred eleven million, two hundred forty-four thousand, nine".