11010011261 has 2 divisors, whose sum is σ = 11010011262. Its totient is φ = 11010011260.

The previous prime is 11010011209. The next prime is 11010011267. The reversal of 11010011261 is 16211001011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10255410361 + 754600900 = 101269^2 + 27470^2 .

It is a cyclic number.

It is not a de Polignac number, because 11010011261 - 2²² = 11005816957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11010011267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505005630 + 5505005631.

It is an arithmetic number, because the mean of its divisors is an integer number (5505005631).

Almost surely, 2^11010011261 is an apocalyptic number.

It is an amenable number.

11010011261 is a deficient number, since it is larger than the sum of its proper divisors (1).

11010011261 is an equidigital number, since it uses as much as digits as its factorization.

11010011261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 11010011261 its reverse (16211001011), we get a palindrome (27221012272).

The spelling of 11010011261 in words is "eleven billion, ten million, eleven thousand, two hundred sixty-one".