11133021010261 has 2 divisors, whose sum is σ = 11133021010262. Its totient is φ = 11133021010260.

The previous prime is 11133021010253. The next prime is 11133021010337. The reversal of 11133021010261 is 16201012033111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9145217099236 + 1987803911025 = 3024106^2 + 1409895^2 .

It is a cyclic number.

It is not a de Polignac number, because 11133021010261 - 2³ = 11133021010253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11133021010561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5566510505130 + 5566510505131.

It is an arithmetic number, because the mean of its divisors is an integer number (5566510505131).

Almost surely, 2^{11133021010261} is an apocalyptic number.

It is an amenable number.

11133021010261 is a deficient number, since it is larger than the sum of its proper divisors (1).

11133021010261 is an equidigital number, since it uses as much as digits as its factorization.

11133021010261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 11133021010261 its reverse (16201012033111), we get a palindrome (27334033043372).

The spelling of 11133021010261 in words is "eleven trillion, one hundred thirty-three billion, twenty-one million, ten thousand, two hundred sixty-one".