1161242711 has 2 divisors, whose sum is σ = 1161242712. Its totient is φ = 1161242710.

The previous prime is 1161242689. The next prime is 1161242759. The reversal of 1161242711 is 1172421611.

It is a weak prime.

It is an emirp because it is prime and its reverse (1172421611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1161242711 - 2¹⁸ = 1160980567 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1161242611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580621355 + 580621356.

It is an arithmetic number, because the mean of its divisors is an integer number (580621356).

Almost surely, 2^1161242711 is an apocalyptic number.

1161242711 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161242711 is an equidigital number, since it uses as much as digits as its factorization.

1161242711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 26.

The square root of 1161242711 is about 34077.0114740128. The cubic root of 1161242711 is about 1051.0926527413.

The spelling of 1161242711 in words is "one billion, one hundred sixty-one million, two hundred forty-two thousand, seven hundred eleven".