1111313009 has 2 divisors, whose sum is σ = 1111313010. Its totient is φ = 1111313008.

The previous prime is 1111312981. The next prime is 1111313053. The reversal of 1111313009 is 9003131111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1043613025 + 67699984 = 32305^2 + 8228^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111313009 - 2⁸ = 1111312753 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111313209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555656504 + 555656505.

It is an arithmetic number, because the mean of its divisors is an integer number (555656505).

Almost surely, 2^1111313009 is an apocalyptic number.

It is an amenable number.

1111313009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111313009 is an equidigital number, since it uses as much as digits as its factorization.

1111313009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81, while the sum is 20.

The square root of 1111313009 is about 33336.3616641049. The cubic root of 1111313009 is about 1035.8068992202.

The spelling of 1111313009 in words is "one billion, one hundred eleven million, three hundred thirteen thousand, nine".