1131116009 has 2 divisors, whose sum is σ = 1131116010. Its totient is φ = 1131116008.

The previous prime is 1131115991. The next prime is 1131116023. The reversal of 1131116009 is 9006111311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 849547609 + 281568400 = 29147^2 + 16780^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131116009 - 2⁸ = 1131115753 is a prime.

It is not a weakly prime, because it can be changed into another prime (1131116309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565558004 + 565558005.

It is an arithmetic number, because the mean of its divisors is an integer number (565558005).

Almost surely, 2^1131116009 is an apocalyptic number.

It is an amenable number.

1131116009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131116009 is an equidigital number, since it uses as much as digits as its factorization.

1131116009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 23.

The square root of 1131116009 is about 33632.0681641793. The cubic root of 1131116009 is about 1041.9232192176.

The spelling of 1131116009 in words is "one billion, one hundred thirty-one million, one hundred sixteen thousand, nine".