12011300261 has 2 divisors, whose sum is σ = 12011300262. Its totient is φ = 12011300260.

The previous prime is 12011300251. The next prime is 12011300311. The reversal of 12011300261 is 16200311021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10320528100 + 1690772161 = 101590^2 + 41119^2 .

It is a cyclic number.

It is not a de Polignac number, because 12011300261 - 2¹⁴ = 12011283877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011300201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005650130 + 6005650131.

It is an arithmetic number, because the mean of its divisors is an integer number (6005650131).

Almost surely, 2^12011300261 is an apocalyptic number.

It is an amenable number.

12011300261 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011300261 is an equidigital number, since it uses as much as digits as its factorization.

12011300261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12011300261 its reverse (16200311021), we get a palindrome (28211611282).

The spelling of 12011300261 in words is "twelve billion, eleven million, three hundred thousand, two hundred sixty-one".