1161105013 has 2 divisors, whose sum is σ = 1161105014. Its totient is φ = 1161105012.

The previous prime is 1161104911. The next prime is 1161105017. The reversal of 1161105013 is 3105011611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1102704849 + 58400164 = 33207^2 + 7642^2 .

It is a cyclic number.

It is not a de Polignac number, because 1161105013 - 2¹⁷ = 1160973941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1161105017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580552506 + 580552507.

It is an arithmetic number, because the mean of its divisors is an integer number (580552507).

Almost surely, 2^1161105013 is an apocalyptic number.

It is an amenable number.

1161105013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161105013 is an equidigital number, since it uses as much as digits as its factorization.

1161105013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 19.

The square root of 1161105013 is about 34074.9910198081. The cubic root of 1161105013 is about 1051.0511055621.

Adding to 1161105013 its reverse (3105011611), we get a palindrome (4266116624).

The spelling of 1161105013 in words is "one billion, one hundred sixty-one million, one hundred five thousand, thirteen".