11101261 has 2 divisors, whose sum is σ = 11101262. Its totient is φ = 11101260.

The previous prime is 11101231. The next prime is 11101291. The reversal of 11101261 is 16210111.

It is a balanced prime because it is at equal distance from previous prime (11101231) and next prime (11101291).

It can be written as a sum of positive squares in only one way, i.e., 10956100 + 145161 = 3310^2 + 381^2 .

It is an emirp because it is prime and its reverse (16210111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11101261 - 2⁷ = 11101133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11101231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550630 + 5550631.

It is an arithmetic number, because the mean of its divisors is an integer number (5550631).

Almost surely, 2^11101261 is an apocalyptic number.

It is an amenable number.

11101261 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101261 is an equidigital number, since it uses as much as digits as its factorization.

11101261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 11101261 is about 3331.8554890631. The cubic root of 11101261 is about 223.0783573096.

Adding to 11101261 its reverse (16210111), we get a palindrome (27311372).

The spelling of 11101261 in words is "eleven million, one hundred one thousand, two hundred sixty-one".