1111120009 has 2 divisors, whose sum is σ = 1111120010. Its totient is φ = 1111120008.

The previous prime is 1111119979. The next prime is 1111120013. The reversal of 1111120009 is 9000211111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 923977609 + 187142400 = 30397^2 + 13680^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111120009 - 2⁹ = 1111119497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1111119974 and 1111120001.

It is not a weakly prime, because it can be changed into another prime (1111120039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555560004 + 555560005.

It is an arithmetic number, because the mean of its divisors is an integer number (555560005).

Almost surely, 2^1111120009 is an apocalyptic number.

It is an amenable number.

1111120009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111120009 is an equidigital number, since it uses as much as digits as its factorization.

1111120009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 16.

The square root of 1111120009 is about 33333.4668013995. The cubic root of 1111120009 is about 1035.7469334249.

The spelling of 1111120009 in words is "one billion, one hundred eleven million, one hundred twenty thousand, nine".